Benchmark Scientific

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.
&nbsp;
<h2>What You Will Find</h2>
&nbsp;
<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>
&nbsp;
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.

Manufacture

Hotplate & Stirrer Accessories

<h2>What Are Hotplate and Stirrer Accessories?</h2>
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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.
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<h2 dir="ltr">What You Will Find:</h2>
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<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>
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<h2>How to Choose Hotplate and Stirrer Accessories</h2>
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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.
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<h2>Specifications Context</h2>
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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;
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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

Microcentrifuge Accessories

<h2>What Are Microcentrifuge Accessories?</h2>
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Microcentrifuge accessories maintain performance, extend tube-format versatility, and ensure safe operation of benchtop microcentrifuges. These include replacement fixed-angle rotors for 12&ndash;24 &times; 1.5/2.0 mL tube positions, tube adapters for 0.5 mL and 0.2 mL formats, aerosol-tight sealed rotor lids for biocontainment of infectious specimens, balance tubes for partial-load runs, and specialty rotors for PCR strips or 5.0 mL tubes where supported by the centrifuge model. All microcentrifuge accessories are model-specific, as rotor coupling systems and tube bore dimensions differ between manufacturers and even between models within the same brand, making exact model verification essential before ordering.
&nbsp;
<h2>What You Will Find:</h2>
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<ul>
<li>High-quality adapters and rotors for precise and reliable tube fit</li>
<li>Multiple formats including PCR strips, microtubes, plates, and spin columns</li>
<li>Specialized and high-capacity rotors for enhanced compatibility</li>
<li>Swing-out and sealed options for reliable and contamination-free processing</li>
</ul>
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<h2>How to Choose Microcentrifuge Accessories</h2>
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Replacement Rotor Identification
The rotor model number is typically printed on the rotor body or listed in the centrifuge user manual. Cross-reference it with the manufacturer's accessory catalog to confirm that the coupling system matches the centrifuge motor shaft. For standard 12-position rotors, verify compatibility with both 1.5 mL and 2.0 mL microtubes.
Tube Adapter Sizing
For 0.5 mL adapters, ensure the outer diameter closely matches the rotor bore so the tube remains secure during operation. For 0.2 mL adapters, confirm that PCR tubes are positioned correctly to achieve the intended centrifugal force while maintaining stability throughout the run.
Aerosol-Tight Sealed Lids
Choose sealed lids rated for the rotor's maximum operating RCF. O-rings should be inspected regularly for flattening, cracking, or discoloration and replaced immediately if any signs of wear appear. Maintaining replacement O-rings for frequently used lids helps ensure continued safe operation.
Specialty Rotors
Some microcentrifuge models support optional rotors for 5.0 mL tubes, PCR strips, or microplates. These accessories expand workflow flexibility but may operate at lower maximum RCF values than standard 1.5 mL rotors. Always verify the rated speed and force limits before use.
Balance Tubes
Balance tubes help maintain proper rotor balance during partial-load runs. They should closely match the mass and dimensions of the sample tubes being processed. Proper balancing reduces vibration, minimizes bearing wear, and supports long-term centrifuge performance.
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<h2>Specifications Context</h2>
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Many modern fixed-angle rotors and polypropylene adapters are autoclavable, although specific sterilization requirements vary by manufacturer and material. Always follow the OEM maintenance and decontamination guidelines for each accessory. Rotor service life is generally determined by cumulative operating hours and manufacturer recommendations rather than visual appearance alone.
Sealed rotor lid systems with one-touch release mechanisms have become standard in modern molecular diagnostic laboratories, providing improved safety, easier maintenance, and enhanced biocontainment for regulated workflows.
Stop wasting time searching. The best microcentrifuge accessories are right here at MBP Products. <a href="https://mbpinc.net/contact-us">Connect with our expert team</a> to get your equipment accessories today.

Strip Rotor for MyFuge Mini

C1008-ROT2A by Benchmark Scientific is the PCR strip rotor for the MyFuge Mini centrifuge (C1008 series), accommodating 4 × 8-tube PCR strips (32 × 0.2 ml) at up to 6,000 rpm and 2,000 xg. Ideal as a replacement or dedicated strip-tube rotor for molecular biology benches.

Minicentrifuge

<h2>What Are Minicentrifuges?</h2>
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Minicentrifuges (personal centrifuges or pulse centrifuges) are compact lid-activated benchtop instruments that spin at a fixed speed of approximately 6,000 RPM (2,000 &times;g) for quick spin-down tasks: collecting condensate from microtube caps, concentrating PCR tube contents to the bottom before thermal cycling, briefly clarifying samples after vortexing, and pelleting small-volume precipitates in 0.2 mL, 0.5 mL, 1.5 mL, and 2.0 mL tube formats. Most models include two rotors&mdash;one for 1.5/2.0 mL microtubes with 0.5 mL adapters, and one for 0.2 mL PCR tubes and 8-strip PCR strips&mdash;in a compact benchtop footprint. Lid closure starts the rotor, and lid opening stops it within seconds. The minicentrifuge is a daily-use instrument in molecular biology laboratories performing PCR, RT-PCR, qPCR, cloning, and NGS workflows.
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<h2>What You Will Find:</h2>
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<ul>
<li>BLUline Mini Centrifuges: Compact units for routine microcentrifuge tube applications</li>
<li>BLUline PCR Plate Centrifuge: Designed for rapid PCR plate spin-downs</li>
<li>Globe Scientific Mini Centrifuge: Efficient fixed-speed units for everyday sample processing</li>
<li>myFuge&trade; 12 MiniCentrifuge: Higher sample capacity with a 12-place rotor</li>
<li>myFuge&trade; Digital Mini Centrifuge: Digital controls with combination rotor functionality</li>
<li>StripSpin&trade; Digital Mini Centrifuge: Optimized for PCR strips and plates</li>
<li>Mini Centrifuge: Compact solution for basic laboratory applications</li>
<li>Mini Plate Spinner Centrifuge: Ideal for quick microplate spin-downs</li>
<li>DLAB Mini Centrifuge: Flexible systems with multiple rotors and adapters</li>
<li>Mini Centrifuge Accessories: Rotors and adapters for different tube sizes and laboratory workflows</li>
</ul>
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<h2>How to Choose a Minicentrifuge</h2>
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Fixed Speed vs. Variable Speed
Standard minicentrifuges operate at a fixed speed of approximately 6,000 RPM. Some models offer variable-speed operation, typically between 2,000 and 10,000 RPM, providing additional flexibility for laboratories that occasionally require higher centrifugal force without investing in a full-size microcentrifuge.
Rotor Compatibility and PCR Strip Support
Confirm that both common rotor types are included: a rotor for 1.5/2.0 mL microtubes with 0.5 mL adapters and a rotor for 0.2 mL PCR tubes and PCR strip tubes. Laboratories performing high-throughput PCR or NGS workflows should ensure PCR strips fit securely and can be loaded without additional adapters.
Tool-Free Rotor Exchange
Models with tool-free rotor exchange systems allow users to switch between microtube and PCR rotors quickly without requiring tools. This feature is particularly useful in busy laboratories where rotor changes occur frequently throughout the day.
Portable and Battery Operation
Some minicentrifuges support battery operation in addition to standard AC power. These models are suitable for field sampling, point-of-care testing, mobile diagnostic applications, and environments where power outlets may not be readily available. Verify voltage compatibility and power requirements before purchase.
Noise Level
Most minicentrifuges operate at noise levels of approximately 45 dB or lower, making them suitable for shared laboratory spaces and benchtop use near workstations. Check manufacturer specifications if low-noise operation is a priority.
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<h2>Specifications Context</h2>
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At 6,000 RPM with a typical rotor radius of 39&ndash;42 mm, a standard minicentrifuge generates approximately 1,700&ndash;2,000 &times;g. This is sufficient for condensate collection, quick sample spin-downs, and concentrating PCR reaction contents but is not suitable for applications requiring higher centrifugal force such as spin-column nucleic acid purification, bacterial pelleting, or protein precipitation workflows.
Most minicentrifuges weigh less than 1.5 kg and occupy minimal bench space, making them suitable for crowded laboratory environments, PCR workstations, and biosafety cabinet work areas. Modern models emphasize ease of use through lid-activated operation, compact footprints, quiet performance, and rapid rotor exchange systems.
Your search for a premium-quality minicentrifuge ends here. <a href="https://mbpinc.net/contact-us">Contact the expert team</a> at Molecular Biology Products Inc. today to find the right solution for your laboratory.

Product Literature

StripSpin™12D Digital Mini Centrifuge, holds 12 position PCR strips

C2248 by Benchmark Scientific is the StripSpin™12D digital mini centrifuge for PCR strip tubes, holding 4 × 12-position strips (48 × 0.2 ml tubes) at up to 5,500 rpm / 1,690 × g. Digital timer (1 min–99:59) and lid-open interlock are standard. Universal 100–240 V, 2-year warranty.

Speed

Capacity

Timer

Dimensions

Weight

Electrical

Warranty

StripSpin™12D Digital Mini Centrifuge, holds 12 position PCR strips, 100-240V (US plug)

StripSpin™12D Digital Mini Centrifuge, holds 12 position PCR strips, 100-240V (European 2 prong plug)

PCR Workstation

<h2>What Are PCR Workstations?</h2>
&nbsp;
PCR workstations are compact, three-sided bench-top enclosures designed to protect polymerase chain reaction (PCR) samples and reagents from airborne particles and surface contamination that cause false amplification results. Two technologies are used: UV-only models house a 254 nm UV-C lamp that decontaminates surfaces and tools between reactions; HEPA+UV combination models add vertical laminar airflow through a HEPA filter rated 99.97% at 0.3 &micro;m, creating an ISO 5 (Class 100) environment during active sample handling. PCR is exquisitely sensitive to DNA carryover&mdash;a single amplicon molecule from a previous reaction can generate a false positive&mdash;making dedicated pre-amplification workspace a standard precaution in molecular diagnostics, forensics, and clinical laboratories.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
SureAir PCR workstation:&nbsp;for enclosed, contamination-controlled workflows
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Replacement prefilters: for maintaining clean airflow
</li>
</ul>
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<a href="https://mbpinc.net/equipments/autoclave-and-biosafety-cabinets/pcr-workstation/pcr-workstation-accessories">PCR Workstation Accessories:</a>
<ul>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Replacement HEPA filters: for effective contamination control
</li>
</ul>
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<h2>How to Choose a PCR Workstation</h2>
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UV-Only vs. HEPA+UV Combination
UV-only workstations (typically lower cost) decontaminate surfaces and instruments between runs but provide no active air protection during pipetting. HEPA+UV workstations maintain ISO 5 clean air throughout the work session, protecting open tubes and reaction mixes from settling particles. For shared labs, high-throughput clinical diagnostics, or any setting where reagents are left open during preparation, the HEPA+UV model offers measurably better protection.
Working Width (24 / 32 / 36 inch)
A 24-inch unit suits a single operator and a compact reagent setup. A 32- to 36-inch model accommodates two simultaneous reaction setups or a thermal cycler inside the work zone. Confirm the internal working depth (typically 400&ndash;500 mm) against the equipment being placed inside before ordering.
Filter Configuration
Combination HEPA workstations may include a three-stage filter module: carbon pre-filter (captures gases and reduces ozone), HEPA filter (removes particles &ge;0.3 &micro;m at 99.97% efficiency), and a recirculating UV stage. Three-stage systems extend HEPA filter life and reduce odor in labs handling sensitive reagent mixes.
Accessories and Consumable Cycle
Factor in the replacement UV lamp life (typically 8,000&ndash;9,000 hours) and HEPA filter replacement interval (12&ndash;24 months) when calculating total cost of ownership. Some models include a filter-status indicator or UVTect-style airflow monitor that alerts the operator when the HEPA or lamp requires replacement.
Biosafety Level Compatibility
PCR workstations protect samples only&mdash;they provide no personnel or environmental protection. For any work with infectious agents, a Class II biosafety cabinet certified to NSF/ANSI 49 is required instead of or in addition to a PCR workstation.
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<h2>Specifications Context</h2>
&nbsp;
ISO 5 (equivalent to US Federal Standard 209E Class 100) permits no more than 3,520 particles &ge;0.3 &micro;m per cubic meter of air&mdash;the standard targeted by HEPA+UV PCR workstations operating in normal laboratory conditions. UV-C lamp output at 254 nm degrades over time; replace lamps per the manufacturer's rated life (approximately 8,000 hours for standard UV lamps, longer for long-life UV options) to maintain documented decontamination efficacy. As of 2026, some PCR workstation models include digital 0&ndash;59 minute UV timers and lab event timers, and automatic UV shutoff when the front sash is opened, protecting operators from incidental UV-C exposure during sample access.
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at Molecular Biology Products Inc. (MBP) today to find the right PCR workstation for your lab.

SureAir PCR Workstation

B5200 by Benchmark Scientific is the SureAir™ PCR Workstation — a compact self-contained laminar-flow enclosure delivering ISO 5 clean conditions via a 99.97% HEPA filter (≥0.3 µm) and an 8W UVC germicidal lamp with 15-minute auto-shutoff. Inner work area: 50 × 39 × 40 cm; outer footprint: 55 × 40 × 59.2 cm. Runs on 115V or 230V, 24W, 44 lbs. No ductwork required. 2-year warranty.

UV Light

UV Auto-Shutoff Timer

Materials

Filter

Air Velocity

Outer Dimensions (W x D x H)

Inner Dimensions (W x D x H)

Hand Access Dimensions (W x H)

Power Consumption

Manufectuer

SureAir PCR Workstation, 115V

SureAir PCR Workstation, 230V

Dual Convection Incubator

Extra Shelf, stainless steel, for H2505-40

Extra Shelf, stainless steel, for H2505-70

Extra Shelf, stainless steel, for H2505-130

SureTemp™Dual Convection Incubators

H2505-40 by Benchmark Scientific is the SureTemp™ Dual Convection Incubator — a 40-liter stainless steel 316 chamber incubator with selectable mechanical and gravity convection, ±0.25°C uniformity, and the SureCheck™ data logging system (CSV export every 60 seconds). Temperature range is 5°C above ambient to 75°C; the 120V model ships as H2505-40, 230V as H2505-40E.

Temperature Accuracy

Temperature Uniformity

Temperature Increments

Temperature Stability

Chamber

Interior Dimensions (H2505-40)

Exterior Dimensions (H2505-40)

Weight (H2505-40)

Interior Dimensions (H2505-70)

Exterior Dimensions (H2505-70)

Weight (H2505-70)

Interior Dimensions (H2505-130)

Exterior Dimensions (H2505-130)

Weight (H2505-130)

SureTemp ™ Dual Convection Incubator, 40 Litre with SureTemp Data Logging Software, 115V

SureTemp ™ Dual Convection Incubator, 40 Litre with SureTemp Data Logging Software, 230V

SureTemp ™ Dual Convection Incubator, 70 Litre with SureTemp Data Logging Software, 115V

SureTemp ™ Dual Convection Incubator, 70 Litre with SureTemp Data Logging Software, 230V

SureTemp ™ Dual Convection Incubator, 130 Litre with SureTemp Data Logging Software, 115V

SureTemp ™ Dual Convection Incubator, 130 Litre with SureTemp Data Logging Software, 230V

Water Baths Accessories

<h2>What Are Water Bath Accessories?</h2>
&nbsp;
Water bath accessories are the ancillary components that maximize the function, safety, sample capacity, and operational life of laboratory water baths. They fall into five categories: sample holders (tube racks, floating racks, flask trays, concentric ring covers) that organize and stabilize sample containers in the bath; temperature measurement tools (calibrated bath thermometers, RTD probes, temperature data loggers) that verify the bath is performing to specification; coverage and evaporation control items (gable lids, flat covers, hollow bath balls) that reduce heat loss and contamination; water conditioning products (antimicrobial additives, deionized water corrosion inhibitors) that maintain bath water quality; and plumbing components (tubing, hose clamps, insulation kits) for connecting circulating baths to external equipment. Select accessories based on your sample container format, the temperature at which the bath operates (higher temperatures need better coverage), and whether the bath is used for sensitive biological samples (requiring antimicrobial water treatment).
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<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Microtube Racks: Custom optional racks created to securely accommodate 0.5 mL, 1.5 mL, and 2.0 mL microtubes for efficient sample processing in high densities.
</li>
<li dir="ltr" aria-level="1">
High-Capacity Test Tube Holders: Sturdy racks offered in various setups, accommodating up to 76 x 15 mL tubes or 30 x 50 mL tubes.
</li>
<li dir="ltr" aria-level="1">
Adaptable Tube Holder: An extensive selection of inserts designed for 5 mL, 15 mL, and 50 mL tubes to guarantee uniform thermal treatment for each sample.
</li>
<li dir="ltr" aria-level="1">
Efficient Design: Sturdy, corrosion-proof rack configurations that snugly fit in your water bath chamber to avoid tipping and loss of samples.
</li>
</ul>
&nbsp;
<h2>How to Choose Water Bath Accessories</h2>
&nbsp;
Tube racks and sample holders
Stainless steel tube racks with fixed openings (10 mm, 16 mm, 25 mm hole diameters) hold test tubes and microcentrifuge tubes in the bath upright and submerged to the required depth. Polypropylene tube racks that sink in water (made from a PP blend with higher density than water) are stable in shaking baths; confirm sinking vs. floating designation before purchasing for a shaking water bath application. Floating foam racks (HDPE foam, brightly colored) suspend tubes at the water surface for partial immersion and are suitable for thawing frozen cryovials gently. Flask trays and concentric ring covers accommodate round-bottomed and flat-bottomed Erlenmeyer flasks of 50-2000 mL.
Bath thermometers and temperature verification
Calibrated non-mercury glass thermometers (spirit-filled with red or blue alcohol) for water bath use are available in ranges of 0-50 degrees C and 0-100 degrees C, and verify the bath's setpoint accuracy by independent measurement. Digital reference thermometers with immersion RTD probes (PT100 or PT1000) provide higher accuracy verification (plus or minus 0.1 degrees C) and are required for GLP and cGxP compliance documentation. Traceable calibration certificates with NIST reference are available for digital probe thermometers used in regulated laboratory environments.
Covers and evaporation control
Gable (ridge) lids deflect condensate from the inside surface of the lid to the bath walls, preventing droplets from falling onto open sample vessels. Flat polycarbonate or stainless steel lids are simple and cost-effective, but they accumulate condensate pools that drip. Hollow ball lids (polyethylene bath balls, 35-40 mm diameter, floating in a layer on the bath surface) are particularly effective at reducing evaporation and maintaining temperature while allowing easy sample insertion and removal without removing a rigid lid; they can reduce evaporative loss by over 80% at 60 degrees C compared to an open-top bath. Covers are essential for baths operating above 80 degrees C, where evaporation rates are high.
Antimicrobial additives and water quality
Bacterial, algal, and fungal contamination of bath water occurs readily at 37 degrees C (physiological temperature), producing biofilms on tank walls and heating elements that can cross-contaminate open sample vessels. Quaternary ammonium-based antimicrobial bath additives (added at 1:100 to 1:1000 v/v to deionized water) maintain water clarity and reduce biofilm formation. Corrosion inhibitor additives for stainless steel tanks protect against pitting corrosion when deionized water (which lacks the buffering of tap water and can be mildly aggressive to stainless steel) is used. Always confirm that additives are compatible with your sample type and bath material before use.
Plumbing kits for circulating baths
Circulating baths are connected to external jacketed vessels, reactor jackets, and instruments via flexible silicone or polyurethane tubing, hose barb fittings, and hose clamps. Plumbing kits from Thermo Fisher (Precision bath plumbing packages) and PolyScience include compatible tubing diameters and fittings for their specific circulating bath models. Thermal insulation wrap (foam pipe lagging) on external tubing runs between the bath and jacketed vessel reduces heat loss and improves temperature control at the external application.
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<h2>Specifications Context</h2>
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Hollow polyethylene bath balls reduce evaporation by over 80% at 60-80 degrees C compared to open-top operation, significantly reducing the frequency of water top-ups and the energy lost through evaporative cooling at high setpoint temperatures. Spirit-filled non-mercury glass thermometers for water baths are calibrated to plus or minus 1 degree C; digital RTD reference probes provide plus or minus 0.1 degrees C accuracy and are required for documented temperature verification in GLP, ISO 9001, and CLIA-regulated environments. Polypropylene tube racks formulated to sink in water are specified for shaking water bath use; a standard floating foam rack will be swept out of position by the agitation mechanism in an orbital shaking bath, making sinking racks essential for shaker applications. Hollow bath ball lids and antimicrobial water conditioning have become standard practice in cell culture labs as replacements for open-top baths and uncontrolled tap water, driven by contamination events and GLP audit requirements.&nbsp;
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Upgrade your immersion heating system now&mdash;explore our water bath accessories and <a href="https://mbpinc.net/contact-us">reach out to the MBP team</a> for a quote.

Test Tube rack for 15 x 50 ml tubes

B2000-4-T500 by Benchmark Scientific is a tube rack that holds 15 x 50mL tubes, designed for the Benchmark MyBath 4L digital water bath and also available separately as a replacement or spare.

Test Tube rack for 30 x 50 ml tubes

The B2000-8-T500 by Benchmark Scientific is a 30-position tube rack sized for 50mL tubes, built as an accessory for the Benchmark MyBath 8L and 12L digital water bath series.

Test Tube rack for 40 x 0.5 ml tubes

B2000-4-T5 by Benchmark Scientific is an optional tube rack that holds 40 x 0.5mL tubes, designed for use with the MyBath Series digital water baths.

Test Tube rack for 40 x 1.5/2.0 ml tubes

B2000-4-T1520 by Benchmark Scientific is a replacement/accessory rack for the Benchmark MyBath™ Digital Water Bath, holding 40 x 1.5 or 2.0 ml microcentrifuge tubes. Compatible with the 4L, 8L, and 12L MyBath models. Order via Quick Order at mbpinc.net/quickorder using catalog number B2000-4-T1520, or contact customerservice@mbpinc.net.

Test Tube rack for 41 x 15 ml tubes

B2000-4-T150 by Benchmark Scientific is a tube rack holding 41 x 15mL tubes, designed for the Benchmark MyBath 4L digital water bath and available separately as a replacement or spare.