Brands

Microscope Accessories

<h2>What Are Microscope Accessories?</h2>
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Microscope accessories are supplementary components that configure, upgrade, or expand the function of a base microscope beyond its standard out-of-the-box specification. They fall into several categories: imaging accessories (cameras, camera adapters, camera relay lenses) for digital image capture and video documentation; optical accessories (additional or replacement objective lenses, eyepieces, auxiliary objectives for stereo microscopes) that change magnification or improve optical quality; fluorescence accessories (filter cube sets, LED fluorescence modules, mercury lamp adapters, UV/visible filter wheels) for adding or expanding fluorescence capability; stage accessories (multiwell plate holders, slide holders, cross-roller stages, motorized XY stage inserts, focus drives) that expand sample handling; illumination accessories (fiber optic illuminators, ring lights, polarizers, dark-field condensers) for alternative contrast methods; and maintenance and consumable accessories (immersion oil, lens paper, slide cleaning kits, replacement illuminator bulbs). Because accessory designs are instrument-specific (not all cameras, objectives, or stage inserts are universally compatible), identify the microscope model and manufacturer before ordering any accessory. Always identify the exact microscope model and manufacturer before ordering any accessory; thread standards, bayonet mounts, tube lengths, and connector formats vary significantly between brands and generations.
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<h2 class="PDq2pG_selectionAnchorContainer" data-section-id="bxblbi" data-start="0" data-end="23">What You Will Find:</h2>
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Microscope Cameras for high-resolution image and video capture, including HD and 4K imaging options.
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Photo Port Adapters and Camera Tubes for connecting digital cameras to compatible microscopes.
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Microscope Adapters designed to support a wide range of imaging and mounting configurations.
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LED Illuminators that enhance specimen visibility and image quality across microscopy applications.
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Digital Imaging Accessories that enable documentation, image analysis, teaching, and research workflows.
</li>
</ul>
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<h2>How to Choose Microscope Accessories</h2>
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Digital cameras and adapters
Microscope cameras attach to the trinocular port (or monocular camera port on some models) via a C-mount camera adapter with an integrated relay lens. The relay lens magnification (typically 0.35x, 0.5x, or 1x) determines the effective field of view on the camera sensor. Choose a CMOS camera with 5 to 20 megapixels for brightfield documentation and routine fluorescence; scientific CMOS (sCMOS) or cooled CCD cameras for low-light fluorescence quantification. Confirm the camera software is compatible with the microscope's control software (if motorized).
Objective lenses
Replacement or additional objectives must match the microscope's objective thread standard and tube length (160 mm finite or infinity-corrected). Never mix finite-optics and infinity-corrected objectives on the same nosepiece; the image-forming properties are incompatible. Plan-apochromat objectives in the same brand family as the microscope are the safest choice for optical performance and parfocality with the existing objective set.
Fluorescence filter cube sets
Fluorescence filter cubes contain an excitation bandpass filter, a dichroic mirror, and an emission bandpass filter, which are the three components that define which fluorescent dye or protein is imaged. Common filter sets: DAPI (Ex 360/40, Di 400LP, Em 460/50); FITC/GFP (Ex 470/40, Di 495LP, Em 525/50); TRITC/mCherry (Ex 550/25, Di 565LP, Em 605/70); Cy5 (Ex 620/60, Di 660LP, Em 700/75). Confirm the cube block type (Olympus U-MF2, Nikon B-2A, Zeiss 38HE, or other) matches the filter cube turret of the specific microscope model.
Stage inserts and sample holders
Stage inserts expand sample compatibility: multiwell plate holders (96-well, 384-well, 6-well) for high-content imaging; glass-bottom dish holders for live-cell imaging with oil-immersion objectives; slide holder adapters for larger or smaller slide formats; and universal stage inserts for non-standard containers. Confirm the stage insert dimensions match the microscope's mechanical stage cutout and that the height profile is compatible with the condenser working distance for transmitted illumination.
LED fluorescence modules
LED fluorescence modules replace or augment mercury arc lamps in the fluorescence port of existing microscopes, providing individual LED channels for DAPI, GFP, TRITC, and Cy5 excitation. LED upgrades are available as bolt-on add-ons for many research-grade inverted and upright microscopes and significantly extend the fluorescence illumination service life from 200 to 300 hours (mercury) to 50,000+ hours (LED). Confirm the LED module's mounting standard and control interface (USB, TTL, or software-triggered) is compatible with the microscope.
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<h2>Specifications Context</h2>
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Immersion oil for oil-immersion microscopy must match the refractive index for which the objective is designed; standard immersion oil has a refractive index of 1.515 at 23 degrees C (per ASTM and DIN standards). Using oils with different refractive indices introduces spherical aberration. Viscosity matters for the application: low-viscosity oils (Type A, 150 mPas) spread easily and are used for fast scanning; high-viscosity oils (Type B, 1250 mPas) resist creep at elevated stage temperatures. Clean all residual immersion oil from objectives immediately after each use with lens tissue dampened with appropriate lens cleaning solution; dried immersion oil is difficult to remove and can permanently damage the objective coating.&nbsp;
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To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.

Standard 23.2 mm tube for Oxion upright (revision 2) and Oxion Inverso inverted microscopes, for use with EOX-2053-PLPH and camera EVC-3024-HDS

EAE-5120-2 by Euromex is a standard 23.2 mm phototube adapter for Oxion upright (revision 2) and Oxion Inverso inverted microscopes, enabling direct connection of the EVC-3024-HDS camera via the EOX-2053-PLPH trinocular head. The revision-specific design ensures correct optical alignment; confirm your microscope is revision 2 before ordering. Contact MBP at customerservice@mbpinc.net for availability and institutional pricing.

Manufacture

Cell Counter Accessories

<h2>What Are Cell Counter Accessories?</h2>
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Cell counter accessories are the consumable reagents and replacement components that enable continued, accurate operation of automated cell counters. They fall into three categories: consumable slides (single-use counting chambers loaded fresh for each sample); staining reagents (trypan blue, AO/PI kits, or other viability dyes used to prepare the cell suspension before counting); and instrument maintenance components (calibration beads for verifying counting accuracy, replacement light sources or LED modules, optical cleaning solutions for direct-pipette instruments, and software updates). Counting slides are the dominant consumables by volume and cost, typically used at one slide per sample (two counting chambers per slide provide technical duplicates). Because counting slides are instrument-specific (not interchangeable between brands), procurement must specify the correct instrument model. Third-party slides compatible with certain instruments (Countess-type, TC20-type) are available from alternative suppliers at a lower cost per slide; confirm compatibility and counting accuracy before switching from OEM slides. The two consumables needed for every cell count are a counting slide and a staining reagent; order both in sufficient quantity for your weekly sample volume, and maintain a stock of 4 to 6 weeks of slides to avoid workflow disruptions from supply delays.
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<h2>What You Will Find</h2>
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<ul>
<li>Disposable QuadSlides for accurate and consistent cell counting with QuadCount automated cell counters.</li>
<li>Standard test slides for instrument verification and performance checks.</li>
<li>Barcode scanners for streamlined sample identification and workflow management.</li>
<li>Cell counter accessories designed to support routine operation and maintenance of QuadCount automated cell counters.</li>
</ul>
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<h2>How to Choose Cell Counter Accessories</h2>
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Counting slides: OEM vs. third-party
Original equipment manufacturer (OEM) counting slides are validated for accuracy on the specific instrument and are the safest choice for regulated and research-critical workflows. They typically cost 0.80 to 2.00 USD per slide. Third-party alternative slides (for Countess II-compatible, TC20-compatible, and other common platforms) are available at 0.20 to 0.60 USD per slide, a significant cost reduction in high-frequency counting labs. Before switching to third-party slides, count the same samples on both OEM and third-party slides across a range of densities (1&times;105 to 5&times;106 cells/mL) and viability levels (above 90% and 70 to 80%) to verify equivalent accuracy and viability discrimination.
Trypan blue reagent: concentration and quality
Trypan blue for cell counting is supplied as a 0.4% solution (w/v) in phosphate-buffered saline. Dilute the cell suspension 1:1 with 0.4% trypan blue immediately before counting (resulting in 0.2% trypan blue in the counted mixture). Ensure the trypan blue solution is sterile-filtered (0.2 micron) and stored at room temperature away from light; degraded or contaminated trypan blue causes inconsistent staining intensity, compromising viability discrimination. Some automated cell counters use a proprietary pre-diluted trypan blue optimized for the instrument's imaging algorithm; confirm whether the instrument requires instrument-specific trypan blue or accepts a standard 0.4% solution.
AO/PI viability kits
Acridine orange (AO) and propidium iodide (PI) reagent kits are supplied as ready-to-use or concentrate formulations. AO penetrates all nucleated cells and fluoresces green (excitation 470 to 490 nm, emission 515 to 530 nm); PI enters only cells with compromised membranes and fluoresces red (excitation 530 to 550 nm, emission 610 to 640 nm). AO/PI kits are matched to the fluorescence filter configuration of the specific cell counter; confirm that the instrument has the appropriate excitation/emission channels before specifying a kit. Store AO/PI solutions protected from light; AO is stable for 12 months at 2 to 8 degrees C.
Calibration beads
Calibration bead sets contain fluorescent microspheres at known concentrations and known fluorescence intensities, used to verify that the cell counter's counting algorithm and fluorescence channels are performing within specification. Calibration should be performed at a defined frequency (monthly or quarterly, depending on the laboratory's quality management requirements) and after any instrument relocation, service, or software update. Store calibration beads at 2 to 8 degrees C protected from light; do not freeze.
Direct-pipette instrument cleaning accessories
Cell counters with direct-pipette optical counting surfaces (no disposable slide) require cleaning with manufacturer-specified optical surface cleaning solutions between every sample to prevent carryover. Cleaning kits typically include a low-detergent optical cleaning solution, lint-free optical wipes, and a rinse solution. Follow the manufacturer's cleaning protocol exactly; using inappropriate cleaning agents on the optical surface degrades the surface coating and permanently impairs counting accuracy.
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<h2>Specifications Context</h2>
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Counting slide chamber depth (most commonly 100 micrometers) determines the volume of suspension imaged per frame and affects cell density calculation. A non-standard chamber depth produces systematic counting errors; never use counting slides with unspecified or incorrectly specified chamber depths for quantitative cell density measurements. Trypan blue should not be left in contact with cells for more than 3 to 5 minutes before counting; prolonged exposure causes staining of live cells with compromised membranes from extended trypan contact, artificially reducing apparent viability. Set up the staining step immediately before counting, not in advance.
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<div class="pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]" aria-hidden="true">To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.</div>

Standard Test Slide for QuadCount, pk of 1

The E7500-STS1 by Accuris Instruments is a standard test slide for performance verification of the Accuris QuadCount (E7500) Automated Cell Counter, sold as a single-slide pack. Use it before live cell counting sessions to confirm instrument accuracy and document QC for GLP or SOP compliance. Order via mbpinc.net/quickorder or contact MBP for institutional pricing.

<h2 data-section-id="1h8mvlk" data-start="0" data-end="45">What are primary cell culture medium kits?</h2>
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Primary cell culture medium kits are complete, ready-to-prepare culture systems that combine a cell-type-specific basal medium with the supplements required for optimal growth and maintenance of primary cells. Unlike purchasing media, serum, growth factors, and antibiotics separately, these kits provide all components in validated proportions, ensuring that the medium performs as intended for a specific primary cell type.
A typical kit includes a basal medium, a cell-specific growth supplement, an antibiotic component where appropriate, and fetal bovine serum (FBS) or an equivalent supplement when required. The components are designed to be combined directly according to the manufacturer's instructions, reducing preparation errors and improving consistency between experiments.
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<h2 data-path-to-node="5">What you will find:</h2>
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Tissue-specific primary cell culture medium kits
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Specialized growth media for endothelial and epithelial cells
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Workflow systems for thawing, plating, and maintenance of hepatocytes&nbsp;
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Differentiation media for progenitor and stem cells&nbsp;
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<li style="font-family: arial, helvetica, sans-serif;">
Serum-free bioprocessing and cryopreservation reagents
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Targeted fibroblast, smooth muscle, and myocyte growth kits
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<h2 data-section-id="1nip7jz" data-start="1066" data-end="1116">How to choose a primary cell culture medium kit</h2>
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Match the kit to the cell type
Primary cells have highly specialized nutritional and signaling requirements. Kits are available for endothelial cells, hepatocytes, astrocytes, epithelial cells, fibroblasts, stem cells, and many other cell types. Selecting a kit specifically designed for the target cell type is essential for maintaining normal cellular function and morphology.
Serum-containing vs. serum-free formulations
Traditional kits often include FBS as a source of growth factors and nutrients. Serum-free and xeno-free kits replace animal-derived components with defined supplements, reducing variability and supporting applications that require animal-component-free culture conditions.
Complete kit convenience
Most kits provide all major components needed to prepare complete culture medium. This eliminates the need to source multiple reagents individually and helps ensure that supplements are used at the correct concentrations.
Antibiotic inclusion
Many primary cell culture kits include antibiotics to reduce contamination risk during routine culture. However, some specialized formulations, particularly those designed for immune cells and mononuclear cells, are intentionally supplied without antibiotics because these additives can influence cellular responses and experimental outcomes.
Storage and preparation
Kit components are typically stored separately until needed. Basal media and supplements are usually refrigerated, while serum components may require frozen storage before use. Once mixed into complete medium, shelf life is generally shorter than that of the individual components, making it advisable to prepare only the amount needed for near-term use.
Specialized differentiation systems
Some kits are designed not only for maintenance but also for cellular differentiation. These systems may include multiple supplements added sequentially throughout a protocol to guide stem cells or progenitor cells through defined developmental stages.
<h2 data-section-id="dydsco" data-start="3131" data-end="3173">&nbsp;</h2>
<h2 data-section-id="1fljvas" data-start="4061" data-end="4086">Specifications context</h2>
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Primary cell culture medium kits are commonly supplied in a format consisting of a basal medium bottle accompanied by concentrated supplements and serum components that are added directly before use. This approach simplifies preparation while ensuring that all components have been optimized and tested together.
<a href="https://mbpinc.net/contact-us" title="Contact the expert team at MBP">Contact the expert team at MBP</a> today and get optimized primary cell culture medium kits for your lab.

Primary Cell Culture Medium kits

Stellate Growth Medium

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Stereo Microscopes

<h2>What Are Stereo Microscopes?</h2>
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A stereo microscope uses two separate optical paths (each slightly offset from the other) to present a slightly different angle of the specimen to each eye, producing true stereoscopic (three-dimensional) depth perception in the image. Unlike compound microscopes, which use transmitted light through thin, translucent, slide-mounted specimens at high magnification, stereo microscopes use incident (reflected) illumination to observe solid, opaque, or thick specimens from above at lower magnifications. This design provides two key practical advantages: a long working distance (typically 80 to 115 mm at 1x objective) that allows tools, needles, forceps, or soldering irons to be operated under the lens during observation; and a wide field of view that allows large specimens (whole insects, embryos, plant organs, PCBs, rocks) to be seen in context. Stereo microscopes are used in biology (dissection, organism manipulation, embryo handling, zebrafish imaging), materials science and electronics (PCB inspection, solder joint analysis, microelectronics assembly), geology and paleontology (fossil and mineral examination), medical device assembly, and quality control inspection. Use a stereo microscope when you need to observe or manipulate a solid, opaque, or thick specimen in three dimensions with tools beneath the lens; it is the correct instrument for dissection, inspection, and manipulation, not a compound microscope.
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<h2 class="PDq2pG_selectionAnchorContainer" data-section-id="bxblbi" data-start="0" data-end="23">What You Will Find:</h2>
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<ul>
<li>StereoBlue&trade; Stereo Microscopes for routine inspection, sample handling, and educational applications.</li>
<li>NexiusZoom&trade; Stereo Microscopes with continuous zoom magnification for detailed specimen examination.</li>
<li>Three-Dimensional Viewing for accurate observation of surface structures and fine details.</li>
<li>Integrated Illumination Options for clear, high-contrast imaging across a variety of samples.</li>
<li>Ergonomic Designs suited for dissection, quality control, assembly, and laboratory workflows.</li>
</ul>
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<div class="pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]" aria-hidden="true">&nbsp;</div>
<h2>How to Choose a Stereo Microscope</h2>
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Zoom ratio and magnification range
Zoom ratio (the ratio of maximum to minimum magnification in the continuous zoom range) determines how much flexibility the instrument provides without changing objectives. A 10:1 zoom ratio from 7x to 70x (with 1x objective and 10x eyepieces) covers most biology, entomology, and inspection applications. Extended-range research models reach 16.4:1 (Olympus SZX16, 7x to 115x with 1x objective, up to 230x with 2x objective) for applications requiring both macro overview and high-magnification fine detail in a single instrument. Confirm that the magnification range covers both the lowest magnification needed for overview and the highest needed for fine structural detail.
Working distance
Working distance (the distance from the front of the objective to the specimen in focus) determines how much space is available to work under the lens. Standard benchtop stereo microscopes provide 80 to 115 mm working distance at minimum magnification with a 1x objective, adequate for most biological dissection. For surgical or microsurgical applications requiring larger instrument clearance, extended working distance objectives provide 150 to 200 mm or more. For electronics rework requiring access to PCB connectors and leads, confirm that the chosen configuration provides at least 90 to 100 mm.
Optical system: Greenough vs. Common Main Objective (CMO)
The Greenough design uses two independently angled optical systems converging on the specimen; it is the most widely used design in educational and routine research stereo microscopes due to its lower cost. The Common Main Objective (CMO) design uses a single large shared objective lens for both optical paths, producing a more nearly coaxial viewing geometry, improved apochromatic correction, better flatness of field, and easier fluorescence imaging; the design is used in all research-grade stereo microscopes from Zeiss, Leica, Olympus, and Nikon.
Illumination
Reflected LED ring-light illumination is standard for most biological and industrial stereo microscope applications; it provides even, shadow-minimizing illumination of specimen surfaces. Fiber optic illuminators (gooseneck or ring light) allow more directional, oblique, or dark-field illumination for surface relief and crack detection. Transmitted LED illumination (through a clear-glass or frosted-glass stage plate) is used for thin or semi-transparent specimens and organism whole-mounts. Fluorescence illumination (epi-fluorescence via a dedicated fluorescence port) is available on CMO research stereo microscopes for imaging fluorescent labels, GFP whole-mounts, and labeled organisms.
Head configuration
Binocular heads are standard for general observation. Trinocular heads add a vertical camera port for digital imaging and documentation without disrupting the eyepiece view. Confirm that the trinocular port is sized for C-mount cameras (the universal standard) and that the beam splitter does not significantly dim the eyepiece image during camera use.
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<h2>Specifications Context</h2>
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Numerical aperture (NA) in stereo microscopes ranges from 0.10 to 0.30 on standard models, rising to 0.30 NA on high-resolution CMO research systems. Higher NA provides greater resolving power at maximum magnification and brighter fluorescence images. Apochromatic objectives correct chromatic aberration across the entire zoom range, producing color-faithful images without the color fringing visible in achromatic optics, which is important for documentation-quality imaging and fluorescence. Camera adapters for stereo microscopes are generally non-standard (0.5x, 1x, or 1.5x relay lens between the trinocular port and the C-mount camera), and the zoom position affects the camera's field of view; confirm the effective field of view at each zoom setting with the camera sensor size before ordering.&nbsp;
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To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.

ESB-1903-Group-Microscopes Catalog

ESB-1903-Group-TDS-ESB-1903

ESB-1903-Group-TDS-ESB-1903-P

ESB-1903-Group-Choosing a Microscope Made Easy

StereoBlue Specifications

StereoBlue S Set Up and Use Guide

StereoBlue Stereo Microscopes Series

The ESB-1903 StereoBlue™ by Euromex is a trinocular stereo zoom microscope with a 0.7×–4.5× parfocal objective, 7×–45× total magnification, WF 10×/21 mm eyepieces, simultaneous 3W incident and transmitted LED illumination, CE certification, and a 10-year warranty — available with rack-and-pinion, pillar, or boom arm stand configurations.

Trinocular stereo zoom microscope StereoBlue, 0.7x to 4.5x zoom objective, magnification from 7x to 45x, ergonomically pillar stand with incident and transmitted LED illumination

Trinocular stereo zoom microscope StereoBlue, 0.7x to 4.5x zoom objective, magnification from 7x to 45x, ergonomically pillar stand with incident and transmitted LED illumination, with CMEX-18 Pro, 18.0MP digital USB-3 camera with 1/2.3 inch CMOS sensor

Trinocular stereo zoom microscope StereoBlue, 0.7x to 4.5x zoom objective, magnification from 7x to 45x, ergonomically stand with incident and transmitted LED illumination

Trinocular stereo zoom microscope StereoBlue, 0.7x to 4.5x zoom objective, magnification from 7x to 45x, ergonomically stand with incident and transmitted LED illumination, with CMEX-18 Pro, 18.0MP digital USB-3 camera with 1/2.3 inch CMOS sensor

<h2 dir="ltr">What are Syringe Filters?</h2>
 Syringe filters are self-contained, disposable filtration units comprising a polypropylene (PP) housing enclosing a flat-sheet membrane, with a female Luer lock inlet and a male Luer lock outlet. They are attached to a standard syringe, the sample is drawn up, and pushed through the membrane by manual plunger pressure. Standard disc diameters are 4 mm, 13 mm, 25 mm, and 33 mm; membrane pore sizes are 0.22 &micro;m (sterilizing grade) and 0.45 &micro;m (clarification grade), with 0.10 &micro;m available for mycoplasma removal. Effective filtration areas: 13 mm filter &asymp; 0.92 cm&sup2;; 25 mm filter &asymp; 2.98 cm&sup2;. Globe Scientific syringe filters, a confirmed MBP brand, are available in PP housing with PES, PVDF, CA (cellulose acetate), MCE, and nylon membranes in 13 mm and 30 mm diameters, sterile (individually wrapped) and non-sterile (bulk), 0.22 &micro;m and 0.45 &micro;m. Choose syringe filters for volumes of 1&ndash;150 mL; choose vacuum bottle-top filters for volumes above 150 mL.
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<h2 dir="ltr">What you will find:</h2>
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<li dir="ltr" aria-level="1">
PES Syringe Filters for high-flow aqueous filtration
</li>
<li dir="ltr" aria-level="1">
PVDF Syringe Filters for low protein binding
</li>
<li dir="ltr" aria-level="1">
Nylon Syringe Filters for organic solvent compatibility
</li>
<li dir="ltr" aria-level="1">
0.22&mu;m Syringe Filters for absolute sterilization
</li>
<li dir="ltr" aria-level="1">
0.45&mu;m Syringe Filters for clarification and pre-filtration
</li>
<li dir="ltr" aria-level="1">
PTFE Syringe Filters for aggressive chemical resistance
</li>
<li dir="ltr" aria-level="1">
Hydrophilic Syringe Filters for versatile liquid handling
</li>
<li dir="ltr" aria-level="1">
Sterile Individually Blistered Filters for aseptic security
</li>
</ul>
<h2 dir="ltr"> How to Choose Syringe Filters</h2>
 Diameter Selection by Sample Volume 13 mm syringe filters (effective area 0.92 cm&sup2;) handle up to 10&ndash;15 mL per filter before flow resistance becomes impractical. Use with 1&ndash;10 mL syringes. 25 mm syringe filters (2.98 cm&sup2;) handle 10&ndash;100 mL per filter. Use with 10&ndash;60 mL syringes. 33 mm syringe filters (approximately 5&ndash;6 cm&sup2;) handle up to 150 mL and are the largest practical syringe filter format. For volumes above 150 mL, switch to a vacuum bottle-top filter system. Matching filter diameter to sample volume prevents premature membrane clogging and excessive plunger force. Membrane Chemistry for Syringe Filters PES (Polyethersulfone): Low protein binding, high flow rate, aqueous compatibility. Standard choice for biological sample sterilization, cell culture supplement filtration (antibiotics, glutamine, growth factors), and conditioned medium aliquots. Not suitable for strong organic solvents or concentrated acids. PVDF (Polyvinylidene fluoride, hydrophilic): Low protein binding &mdash; among the lowest of all syringe filter membranes, with protein recovery rates &gt;90&ndash;99.9% documented for antibody and enzyme solutions. Compatible with mild organic solvents, weak acids, and most aqueous solutions. The first choice when filtering precious protein solutions (antibodies, enzymes, viral preparations) is where maximum protein recovery is critical. Not suitable for pure DMSO (use PTFE). Nylon (Polyamide): Low extractables, broad chemical compatibility including mixed aqueous-organic solvents, methanol, acetonitrile, and DMSO-water mixtures. Standard for HPLC mobile phase filtration and dissolution testing. Higher protein binding than PES or PVDF &mdash; avoid for biological samples where protein loss is a concern. MCE (Mixed Cellulose Ester): Low cost, aqueous applications only; moderate protein binding. Suitable for general buffer preparation, water sterilization, and non-critical sample preparation. Not compatible with organic solvents or strong acids. CA (Cellulose Acetate): Low protein binding, similar to PES. Suited for biological sample filtration and sterility testing applications. Contains surfactant treatment for wettability &mdash; check for extractable compatibility in downstream assays. PTFE (Polytetrafluoroethylene, hydrophilic): Maximum chemical resistance &mdash; compatible with pure DMSO, concentrated acids and bases, and aggressive organic solvents. The only membrane choice for 100% organic solvent filtration. For aqueous solutions, use hydrophilic PTFE (pre-wetted with methanol or IPA before aqueous filtration unless the hydrophilic version is selected). Sterile vs. Non-Sterile Syringe Filters Sterile syringe filters (individually gamma-irradiated or E-beam sterilized, individually packaged) are required for cell culture media sterilization, supplement preparation, and sample preparation for biological culture. Non-sterile bulk-packed filters (Globe Scientific non-sterile formats) are appropriate for HPLC mobile phase preparation, analytical sample clarification, and non-biological applications where sterility of the filtrate is not required. 
<h2 dir="ltr">Specifications Context</h2>
 Globe Scientific syringe filters are manufactured in a PP housing with a luer-lock inlet and outlet conforming to ISO 594 / ISO 80369 for Luer fittings. PES and PVDF sterile filters are individually gamma irradiated; each is separately wrapped and printed with an expiry date per Globe Scientific lot protocol. Effective filtration areas: 13 mm filter &asymp; 0.92 cm&sup2;; 30 mm filter &asymp; 4.91 cm&sup2; (Globe Scientific welded format). Operating temperature: up to 60 &deg;C. Do not exceed the maximum operating pressure of 6 bar (87 psi). Globe Scientific is ISO 9001:2015 certified. Globe Scientific syringe filters in PES, PVDF, CA, MCE, and nylon membranes at 13 mm and 30 mm diameters are stocked by MBP. 
Request a quote today for premium syringe filters from <a href="https://mbpinc.net/contact-us">the MBP team</a> to&nbsp;find the right filtration solution for your laboratory applications.

Syringe Filters

Membrane: PES, pore size: 0.22μm, diameter: 13mm. Female luer lock + male luer slip. Individually packed.

Membrane: PES, pore size: 0.22μm, diameter: 25mm. Female luer lock + male luer slip. Individually packed.

Membrane: PES, pore size: 0.22μm, diameter: 30mm. Female luer lock + male luer slip. Individually packed.

Membrane: PES, pore size: 0.22μm, diameter: 33mm. Double luer lock. Individually packed.

Membrane: PES, pore size: 0.45μm, diameter: 33mm. Double luer lock. Individually packed.

Membrane: PES, pore size: 0.22μm, diameter: 33mm. Female luer lock + male luer slip. Individually packed.

Membrane: PES, pore size: 0.45μm, diameter: 33mm. Female luer lock + male luer slip. Individually packed.

Membrane: CA, pore size: 0.22μm, diameter: 30mm. Female luer lock + male luer slip. Individually packed.

Membrane: CA, pore size: 0.45μm, diameter: 30mm. Female luer lock + male luer slip. Individually packed.

Membrane Specifications

Sterile Syringe Filter-CA, 30mm Diameter (Female Luer Lock + Male Luer Slip)

Sterile Syringe Filter-CA, 30mm Diameter (Female Luer Lock + Male Luer Slip), 100/Pack, 400/Case\n

Brand

Model

Material

BIOLOGIX STERILE SYRINGE FILTER, MEMBRANE: CA,PORE SIZE: 0.22ΜM,DIAMETER:30MM. FEMALE LUER LOCK + MALE LUER SLIP. 100 PCS/PACK, 4 PACKS/CASE

BIOLOGIX STERILE SYRINGE FILTER, MEMBRANE: CA,PORE SIZE: 0.45ΜM,DIAMETER:30MM. FEMALE LUER LOCK + MALE LUER SLIP. INDIVIDUALLY PACKED, 100 PCS/PACK, 4 PACKS/CASE

Sterile syringe filter, membrane: PES, pore size: 0.22um, diameter: 25mm. Female luer lock + male luer slip. Individually packed. 100 PCS/Pack, 4 Packs/Case.

Sterile syringe filter, membrane: PES, pore size: 0.22um, diameter: 30mm. Female luer lock + male luer slip. Individually packed. 100 PCS/Pack, 4 Packs/Case.

Sterile Syringe Filter-PES

Sterile Syringe Filter-PES, 0.22um Pore Size (Female Luer Lock + Male Luer Slip) 100/Pack, 400/Case

BIOLOGIX STERILE SYRINGE FILTER, MEMBRANE: PES,PORE SIZE: 0.22ΜM,DIAMETER:25MM. FEMALE LUER LOCK + MALE LUER SLIP. INDIVIDUALLY PACKED, 100 PCS/PACK, 4 PACKS/CASE

BIOLOGIX STERILE SYRINGE FILTER, MEMBRANE: PES,PORE SIZE: 0.22ΜM,DIAMETER:30MM. FEMALE LUER LOCK + MALE LUER SLIP. INDIVIDUALLY PACKED, 100 PCS/PACK, 4 PACKS/CASE

Sterile syringe filter, membrane: PES, pore size: 0.22um, diameter: 33mm. Double luer lock. Individually packed. 100 PCS/Pack, 4 Packs/Case.

Sterile syringe filter, membrane: PES, pore size: 0.45um, diameter: 33mm. Double luer lock. Individually packed. 100 PCS/Pack, 4 Packs/Case.

Sterile Syringe Filter-PES, 33mm Diameter (Double Luer Lock)

Sterile Syringe Filter-PES, 33mm Diameter (Double Luer Lock) 100/Pack, 400/Case

BIOLOGIX STERILE SYRINGE FILTER, MEMBRANER: PES,PORE SIZE: 0.22ΜM,DIAMETER:33MM. DOUBLE LUER LOCK.  INDIVIDUALLY PACKED, 100 PCS/PACK, 4 PACKS/CASE

BIOLOGIX STERILE SYRINGE FILTER, MEMBRANE: PES,PORE SIZE: 0.45ΜM,DIAMETER:33MM. DOUBLE LUER LOCK.  100 PCS/PACK, 4 PACKS/CASE

Urinalysis Slide

<h2 data-section-id="1wbl0e7" data-start="0" data-end="30">What Are Urinalysis Slides?</h2>
&nbsp;
Urinalysis slides are precision counting chamber slides designed for standardized microscopic examination of urine sediment. Unlike conventional wet mounts prepared under a standard coverslip, which produce variable and non-reproducible sample depths, urinalysis slides deliver a fixed, calibrated volume for consistent sediment counting and reporting.
Globe Scientific Quick-Read urinalysis slides contain integrated counting chambers, each holding a fixed volume of 6.3 &micro;L, with 10 chambers per slide. These chambers are available in two main formats: Precision Cell (with counting circles) and Precision Grid (with a structured grid). The standardized design ensures reproducibility for clinical reporting, quality control trending, and proficiency testing workflows. These slides are recommended whenever urine sediment counts must be consistent and comparable across users or laboratories.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Grid Complete Systems (I, II, and III) for fully standardized sediment analysis.
</li>
<li dir="ltr" aria-level="1">
Quick-Read&trade; precision cells and grids for rapid, accurate quantification.
</li>
<li dir="ltr" aria-level="1">
Complete urinalysis systems designed for high-throughput clinical screening.
</li>
<li dir="ltr" aria-level="1">
Specialized urinalysis pipettes available in bulk bags or cases.
</li>
<li dir="ltr" aria-level="1">
Urine collection cups with integrated transfer devices and temperature strips.
</li>
<li dir="ltr" aria-level="1">
Plastic vacuum tubes and transfer straws for secure specimen handling.
</li>
</ul>
&nbsp;
<h2 data-section-id="q0vbca" data-start="929" data-end="963">How to Choose Urinalysis Slides</h2>
&nbsp;
Counting Format: Circles vs Grid
Precision Cell slides use printed counting circles that are primarily used for reporting formed elements such as cells and casts per high-power field (HPF), where the circle defines a consistent observation area. Precision Grid slides use a grid layout, which is more suitable for enumerating bacteria, crystals, and other particulate elements where structured counting improves accuracy. Both formats maintain the same chamber volume of 6.3 &micro;L and the same 10-chamber configuration.
System Selection: Individual Components vs Complete Kits
Urinalysis products are available either as individual components or as complete systems. Complete kits include the slide, a calibrated transfer pipette, and a urine collection cup, providing a fully standardized workflow for clinical laboratories. Alternatively, laboratories can purchase slides and pipettes separately in bulk quantities to integrate into existing collection and handling systems.
Throughput and Workflow Efficiency
Each urinalysis slide contains 10 independent chambers, allowing up to 10 separate patient samples to be processed per slide. This configuration is designed for high-throughput clinical screening environments. In lower-volume settings, chambers may be used sequentially, provided proper sealing and handling protocols are followed between uses.
&nbsp;
<h2 data-section-id="1jl751w" data-start="2957" data-end="2982">Specifications Context</h2>
&nbsp;
Globe Scientific Quick-Read urinalysis slides (for example, catalog #3805) are optically clear chamber slides with an integrated coverslip system that eliminates the need for manual coverslip placement. Each chamber contains a fixed and reproducible 6.3 &micro;L volume of urine sediment, significantly reducing variability associated with traditional wet mount techniques, where inconsistent drop size and chamber depth can alter the number of visible formed elements.
Stop settling for "close enough" in your diagnostics. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Ask the MBP Team</a> for a quote right now because when it comes to precision, we don't just count, we make every cell count.

Sternheimer Malbin Urine Sediment Stain, 50mL/Bottle

3810 by Globe Scientific — Sternheimer-Malbin urine sediment stain, 50 mL bottle. Ready-to-use for rapid microscopic differential staining of urinary sediment. Compatible with the Globe Scientific Quick-Prep Urinalysis System. Available from MBP Inc. worldwide.

Hotplate & Stirrer Accessories

<h2>What Are Hotplate and Stirrer Accessories?</h2>
&nbsp;
Hotplate and stirrer accessories are supplementary components for single-position and multi-position hotplate stirrers that improve temperature accuracy, expand vessel compatibility, enable reflux setups, and maintain equipment in working condition. The most important accessory for research-grade hotplate use is an external temperature probe, which monitors actual solution temperature rather than hotplate surface temperature, which can be 20 to 50 degrees C higher than the liquid in the vessel. PTFE stir bars in standard cylindrical, oval, octagonal, cross-shaped, and polygon geometries allow matching of bar shape to vessel type and mixing requirement. Support rods and clamp assemblies secure condensers, separating funnels, and other glassware above the hotplate for reflux chemistry. Magnetic stir bar retrieval wands recover stir bars from flasks without contaminating the solution. An external temperature probe is the single most impactful hotplate stirrer accessory: without one, you are controlling plate temperature, not solution temperature, and the two can differ by 20 to 50 degrees C.
&nbsp;
<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li data-section-id="dpsp0x" data-start="25" data-end="139">Temperature sensors for compatible GHS-series hotplate stirrers, available in standard and glass-coated designs.</li>
<li data-section-id="yvvor4" data-start="140" data-end="248">Sensor support stands and clamps for secure positioning of temperature probes during heating applications.</li>
<li data-section-id="hdqu1" data-start="249" data-end="353">Support rods and clamp sets for mounting laboratory apparatus and accessories above hotplate stirrers.</li>
<li data-section-id="rtdv85" data-start="354" data-end="446">Magnetic stir bars, including standard and pivot ring styles, for efficient sample mixing.</li>
<li data-section-id="1hl26tt" data-start="447" data-end="560" data-is-last-node="">Chemically resistant clamp set options featuring inert PTFE construction for demanding laboratory environments.</li>
</ul>
&nbsp;
<h2>How to Choose Hotplate and Stirrer Accessories</h2>
&nbsp;
External temperature probes
Confirm probe type compatibility with the hotplate stirrer model: most digital hotplate stirrers accept either a PT1000 resistance temperature detector (RTD) or a Type K thermocouple, and these are not interchangeable between models. The probe is inserted directly into the solution and feeds temperature data back to the PID controller to maintain the solution (not the plate surface) at the setpoint. Probe length and sheath material (stainless steel, glass, or PTFE) should be matched to the vessel size and chemical compatibility requirements.
PTFE stir bars: geometry and size
PTFE stir bars are available in cylindrical, oval (egg-shaped), octagonal, cross (X-shape), polygon, and ring geometries. Cylindrical bars are the most common general-purpose format. Octagonal bars provide more turbulent mixing in flat-bottomed vessels than cylindrical bars. Cross-shaped bars improve mixing in round-bottom flasks by preventing the bar from riding the wall. Ring or hoop bars are used for mixing around fixed probes or frits inside the vessel. Stir bar length is selected to match vessel diameter, typically 30 to 50% of vessel inner diameter.
Support stands and clamp sets.
Support stands (rod-and-base assemblies) mount above or adjacent to the hotplate to hold condensers, addition funnels, thermometers, and other glassware in reflux setups. Confirm rod diameter compatibility with the clamp set (most lab glassware clamps fit 12.7 mm or 16 mm rods). Weighted bases provide stability for tall assemblies. Crossbar assemblies allow horizontal positioning of clamps at adjustable heights along the support rod.
Magnetic stir bar retrieval tools
Stir bar retrievers are magnetic wands encased in a non-contaminating sleeve (PTFE or glass) that attract and remove the stir bar from a vessel without inserting fingers or metal into the sample. Available as handheld wands or bench-mounted extractors. An essential accessory for labs processing multiple samples per day, as losing track of stir bars is among the most common minor equipment management issues in bench chemistry.
Replacement sensors and calibration weights
Temperature probes degrade after repeated heating cycles or chemical exposure; replace probes showing drift against a calibrated reference thermometer. For hotplate stirrer models with external calibration weights (balance verification), confirm the weight set is OIML or ASTM traceable for regulated workflows.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
PTFE stir bars should be inspected regularly for chipped or worn PTFE coating. Bare metal exposure from a chipped bar contaminates the sample with metallic particles and alters the bar's magnetic coupling properties, resulting in reduced mixing efficiency or bar stall at lower speeds. Discard and replace any stir bar showing PTFE damage. For regulated lab environments (GMP, ISO 17025), maintain a stir bar inventory log and retire bars on a scheduled basis. External temperature probes rated for immersion in aqueous solutions should be verified against a calibrated reference thermometer at least annually; probes showing more than 1 degree C deviation should be recalibrated or replaced.&nbsp;
&nbsp;
Looking for that one missing piece to complete your setup? Browse our accessories collection and <a href="https://mbpinc.net/contact-us">reach out to the MBP team</a> for a friendly quote today.

Stir Bar for use with IPS7101

IPS7101-BAR by Benchmark Scientific is the manufacturer-matched magnetic stir bar for the Benchmark™ IPS7101 High-Capacity Magnetic Stirrer (HCS series, 50–150 L capacity, 50–1,500 rpm). Ensures optimal magnetic coupling for large-volume stirring applications.

Stir bar, 100mm

Stir bar, 150mm x 24mm

Stir Bar, 1"x5/16"

The H4000-BAR by Across International is a PTFE-coated magnetic stir bar measuring 1 inch × 5/16 inch (25.4 × 7.9 mm). The PTFE coating is chemically inert to acids, bases, and solvents and withstands autoclave sterilization. Suitable for 50–250 mL beakers and flasks on any standard magnetic stir plate. Available in pack options from MBP.

Stir Bar, 1"x5/16", pack of 10

15ml & 50ml Centrifuge Tubes

<h2 data-section-id="155qizo" data-start="0" data-end="33">What Are All Centrifuge Tubes?</h2>
&nbsp;
The All Centrifuge Tubes collection includes the complete range of tube sizes commonly used in research, clinical, and laboratory environments. These tubes range from small 0.5 mL and 1.5&ndash;2 mL microtubes used in microcentrifuge applications to 5 mL and 10 mL midi tubes for intermediate sample volumes, as well as 15 mL and 50 mL conical tubes designed for cell culture, density gradient preparation, and larger-volume sample processing. They are available in polypropylene (PP) for enhanced chemical resistance and temperature tolerance or polystyrene (PS) for improved optical clarity.
&nbsp;
What you will find:
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microcentrifuge-tubes" title="Microcentrifuge Tubes">Microcentrifuge Tubes</a> &ndash; Precision-engineered for small-volume sample preparation.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/screw-cap-tubes" title="Screw Cap Tubes">Screw Cap Tubes</a> &ndash; Secure, leak-proof closures for long-term storage and transport.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/15ml-and-50ml-centrifuge-tubes" title="15ml &amp; 50ml Centrifuge Tubes">15ml &amp; 50ml Centrifuge Tubes</a> &ndash; Standard conical bottom tubes for large-volume processing.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/midicentrifuge-tubes-5ml-and-10ml" title="Midicentrifuge Tubes (5ml &amp; 10ml)">Midicentrifuge Tubes (5ml &amp; 10ml)</a> &ndash; The perfect bridge for intermediate sample sizes.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microtubes-box" title="Microtubes Box">Microtubes Box</a> &ndash; Durable storage racks for organized sample management and protection.
</li>
</ul>
&nbsp;
<h2 data-section-id="1f93yys" data-start="914" data-end="963">How to Choose From All Centrifuge Tube Formats</h2>
&nbsp;
Volume and Rotor Compatibility
Selecting the correct tube size is essential for safe and efficient centrifugation. Microtubes ranging from 0.5&ndash;2 mL are designed for microcentrifuges, while 5&ndash;10 mL midi tubes fit compatible benchtop centrifuge rotors. Larger 15 mL and 50 mL conical tubes are commonly used in clinical and research centrifuges. Always verify rotor compatibility before introducing a new tube format into your workflow.
Sterility Requirements
For sensitive applications such as RNA extraction, cell culture, and clinical diagnostics, sterile tubes certified free of RNase, DNase, and pyrogens are recommended. Non-sterile tubes can provide a cost-effective solution for routine DNA analysis, protein assays, and general sample storage where sterility is not critical.
Material Selection
Polypropylene tubes offer excellent durability, can be autoclaved at 121 &deg;C, and resist many laboratory chemicals and solvents. Polystyrene tubes provide superior transparency, making it easier to monitor liquid levels and sample contents, although they are less resistant to heat and solvents.
Packaging and Inventory Planning
Microtubes are commonly available in pack sizes ranging from 500 to 1,000 units, while 15 mL and 50 mL conical tubes are often supplied in cases of 500. Laboratories with consistent usage may benefit from establishing recurring purchase orders to ensure uninterrupted supply.
&nbsp;
<h2 data-section-id="urfo3f" data-start="2395" data-end="2433">Compare Centrifuge Tube Size Groups</h2>
&nbsp;
Microtubes (0.5&ndash;2 mL) are primarily used for PCR preparation, microcentrifuge applications, and storage of small sample volumes. These are typically manufactured from polypropylene and are available in pack sizes of 500&ndash;1,000 units.
Midi tubes (5&ndash;10 mL) support intermediate-volume centrifugation and supernatant collection. They are commonly made from polypropylene and supplied in packs ranging from 100&ndash;500 units.
15 mL conical tubes are widely used for cell pelleting, RNA isolation, and clinical sample processing. They are available in both polypropylene and polystyrene formats and are generally packaged in cases of 500.
50 mL conical tubes are designed for larger-volume workflows, including tissue culture, density gradient preparation, and sample processing. Like 15 mL tubes, they are available in polypropylene and polystyrene and are commonly sold in cases of 500.
&nbsp;
<h2 data-section-id="1ezckh3" data-start="3318" data-end="3348">Specifications and Features</h2>
&nbsp;
Globe Scientific and Nest Scientific centrifuge tubes are manufactured from USP Class VI virgin polypropylene or polystyrene resin and are certified free from detectable RNase, DNase, and pyrogens. Sterile products are irradiated using gamma or E-beam methods to achieve a sterility assurance level (SAL) of 10⁻⁶. MBP offers both racked and bagged formats for 15 mL and 50 mL conical tubes, along with dispenser-box options for selected microtube product lines that support efficient use in high-throughput laboratory environments.
For procurement teams, MBP accepts purchase orders and offers institutional pricing for bulk and high-volume purchases. <a href="https://mbpinc.net/contact-ushttps://mbpinc.net/contact-us" title="Contact the MBP team" style="color: #236fa1;">Contact the MBP team</a> today to learn more

All Centrifuge Tubes

Storage Boxes for 15 & 50mL Centrifuge Tubes

Globe Scientific polypropylene storage boxes (SKU 3058) for 15 mL centrifuge tubes — 36-place (6×6), blue base, clear indexed lift-off lid, -90°C to +121°C. Companion SKU 3059 for 50 mL tubes (16-place, 4×4). Autoclavable. Dimensions 146×146×127 mm. Economical, space-saving, sold in packs of 4.

Storage Box with Lid for 15mL Centrifuge Tubes, 36-Place (6x6), PP, Blue Base & Clear Lid, 4 Boxes/Carton

Storage Box with Lid for 50mL Centrifuge Tubes, 16-Place (4x4), PP, Blue Base & Clear Lid, 4 Boxes/Carton

Freezers.Accessories

<h2>What Are Laboratory Freezer Accessories?</h2>
&nbsp;
Laboratory freezer accessories fall into four functional groups: organizational hardware that maximizes storage density and sample accessibility; temperature monitoring and alarming systems that protect sample integrity and support compliance; backup protection systems that guard against temperature excursions during power failures; and containment and labeling consumables that prevent sample misidentification and physical damage. Effective freezer accessory selection increases the number of samples stored per unit volume, reduces the time the freezer door is held open during access (directly protecting sample stability), and provides the electronic audit trail required by regulatory frameworks, including CAP, CLIA, GxP, and FDA 21 CFR Part 11. Match accessories to the freezer temperature, sample tube format, and regulatory compliance framework applicable to your laboratory.
&nbsp;
<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Storage Boxes &amp; SST Drawers: High-quality stainless steel drawer sets and storage boxes specifically designed to maximize space and organization within upright and stackable ULT freezers.
</li>
<li dir="ltr" aria-level="1">
CO2 Backup Systems: Critical emergency backup solutions for ultra-low freezers that safeguard your inventory against sample loss during power outages or mechanical failures.
</li>
<li dir="ltr" aria-level="1">
Insulated Shipping Cubes: Advanced VIP insulated containers engineered for the secure and temperature-stable transport of high-value biological materials.
</li>
<li dir="ltr" aria-level="1">
Specialized Inventory Tools: Custom-fit shelving and racking solutions that ensure unrestricted airflow and easy access to your most important specimens.
</li>
</ul>
&nbsp;
<h2>How to Choose Freezer Accessories</h2>
&nbsp;
Freezer racks and storage boxes
Standardized upright freezer racks hold stacked sample storage boxes in fixed positions within the cabinet, enabling systematic sample organization and reducing search time during access. Standard 2-inch (5 cm) sample boxes are the most common format and fit racks in most upright and chest ULT freezers; 3-inch (7.5 cm) boxes store fewer boxes per rack but hold more tubes per box. Rack configurations include fixed upright racks (anchored to cabinet floor or wire shelf), side-access sliding drawer racks (pulled out horizontally for access without removing the whole rack), and adjustable racks for non-standard box sizes. Confirm rack dimensions against the freezer cabinet's internal width, depth, and shelf spacing before ordering.
Sample storage boxes and dividers
Cryogenic sample storage boxes (cryoboxes) are fabricated from cardboard (economy, single-use), high-density polyethylene (HDPE, reusable), polypropylene (PP, autoclavable), or stainless steel (autoclavable, chemically resistant) and hold 9x9 (81 positions), 10x10 (100 positions), or 8x8 (64 positions) tubes per box. Insert dividers (indexed alphanumerically) to create individual tube compartments to prevent tube movement, mixing, and label abrasion during access. For 1.5 mL microcentrifuge tubes, 81-position 9x9 dividers in a 2-inch box are standard; for 15 mL conical tubes, dedicated large-tube racks are required.
Temperature monitoring and data logging
Continuous temperature monitoring systems for ULT freezers include: standalone digital thermometers with external min/max recording probes inserted through door gasket access ports; USB data loggers that record temperature at programmable intervals (1-60 minutes) with NIST-traceable calibration certificates; Wi-Fi-connected wireless sensors with 24/7 real-time cloud monitoring, configurable high/low alarm thresholds, and email/SMS notification (rated to -100 degrees C for ULT applications); and integrated freezer-connected monitoring systems that read data directly from factory-installed cabinet sensors via a dedicated data port. Annual calibration of monitoring probes against NIST-traceable standards is required for CAP, CLIA, and GxP compliance.
Backup protection systems
CO2 backup injection systems activate when cabinet temperature rises above a preset high-alarm threshold (typically 10 degrees C above the normal setpoint), injecting CO2 from an external cylinder through a solenoid-controlled valve into the freezer cabinet, maintaining temperature for 4-12 hours. LN2 (liquid nitrogen) backup injection systems provide similar protection at deeper temperatures and with longer holdover time, but require access to an LN2 supply. Both systems require connection to an external gas supply, installation of solenoid valves, and periodic cylinder replacement or LN2 refill scheduling.
Cryo labels and identification
Cryogenic-rated labels are required for sample tubes stored in ULT and cryogenic conditions; standard adhesive labels lose adhesion at -80 degrees C and fall off during access in cold rooms, causing catastrophic sample misidentification. Cryogenic labels are printed on polyester or polypropylene film with acrylic or cryogenic-grade adhesive rated to -196 degrees C (liquid nitrogen temperatures). Laser-printable cryolabels, wrap-around tube labels, and flag labels are available for 0.5 mL, 1.5 mL, 2 mL, 15 mL, and 50 mL tubes. Barcode-compatible cryolabels enable integration with laboratory information management systems (LIMS).
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Standard 2-inch (5.4 cm) sample boxes fit universal rack systems across most major ULT freezer brands (Thermo Fisher TSX, PHCbi MDF-DU, Esco Lexicon); 3-inch (7.6 cm) boxes require racks specifically designed for that format. Wi-Fi temperature monitoring sensors for ULT applications should be rated for a measurement range of at least -100 degrees C to 0 degrees C; sensors not rated for ULT temperatures lose calibration accuracy below -60 degrees C. NIST-traceable temperature calibration for monitoring probes is required at least annually under CAP and CLIA accreditation, using traceable reference standards with uncertainty documentation. Cloud-based temperature monitoring systems with 21 CFR Part 11-compliant audit trails and automated compliance reporting have become standard in GxP-regulated laboratory environments, replacing manual temperature logbooks and standalone chart recorders.&nbsp;
&nbsp;
Enhance your laboratory storage setup today&mdash;explore our freezer accessories and <a href="https://mbpinc.net/contact-us">reach out to the MBP team</a> for a quote.

Freezer Accessories

Storage Boxes for Ai Glacier -86°C Ultra-Low Upright Freezer

DrawerSet by Across International is a stainless steel drawer and cardboard storage box system for the Ai Glacier G18 −86°C ultra-low upright freezer. The full package includes 16 drawer frame sets, 80 individual drawers, and 400 cardboard boxes (5 × 5 × 2 inches each) to organize cryovials, microtubes, and biological specimens at −86°C. Stainless steel construction withstands continuous ultra-low temperature exposure; the cryogenic-grade cardboard boxes support systematic sample cataloguing and retrieval within the G18 freezer cabinet.