Brands

<h2>What Are Laboratory Freezers?</h2>
&nbsp;
Laboratory freezers are engineered cold-storage instruments that hold samples at defined subzero temperatures with the precision, uniformity, and reliability that biological and pharmaceutical research requires. Standard laboratory freezers (-10 to -25 degrees C) serve DNA, RNA, PCR enzymes, primary and secondary antibodies, and chemical reagents that are stable at -20 degrees C for weeks to months. Low-temperature models (-30 to -40 degrees C) provide better stability for lipid-containing formulations, some viral stocks, and antibody conjugates that degrade at -20 degrees C over extended storage. Ultra-low temperature (ULT) freezers (-40 to -86 degrees C) use a two-stage cascade compressor refrigeration system: a high-stage HFC compressor cooling to -45 to -50 degrees C, then a low-stage hydrocarbon or HFC compressor achieving -80 to -86 degrees C. ULT freezers are the standard for cell line banking, primary cell storage, tissue biorepositories, long-term RNA archiving, and samples with irreplaceable value. Select laboratory freezer temperature based on the minimum storage stability requirement of the most labile material in the freezer, not the most stable.
&nbsp;
<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li>Laboratory freezers: Ultra-low temperature (-86&deg;C) freezers, -40&deg;C medical freezers, and stackable models designed for long-term storage of biological samples, reagents, and research materials.</li>
<li><a href="https://mbpinc.net/equipments/temperature-control-equipment/refrigerators-and-freezers/freezers/freezer-accessories">Freezer accessories</a>: Storage boxes, stainless steel storage drawers, CO2 backup systems, and other components that improve sample organization and freezer reliability.</li>
<li>Cold-chain transport solutions: Vacuum-insulated shipping cubes designed to help maintain low temperatures during sample transportation.</li>
<li>Freeze-drying equipment: Pharmaceutical freeze dryers and vacuum gauges for monitoring primary drying in lyophilization workflows.</li>
<li>Sample preservation solutions: Equipment and accessories that support secure storage, transport, and processing of temperature-sensitive laboratory materials.</li>
</ul>
&nbsp;
<h2>How to Choose a Laboratory Freezer</h2>
&nbsp;
Setpoint temperature
-20 degrees C is appropriate for routine nucleic acid stocks (DNA, plasmid), PCR master mixes, enzymes with glycerol storage buffer, antibodies in glycerol, and chemical reagents stable at -20 degrees C. -40 degrees C extends stability for antibody-drug conjugates, lipid nanoparticles, and some viral vectors. -80 degrees C is required for cell lines (viable storage for 5+ years), primary patient-derived cells, long-term RNA banking (RIN preservation for more than 12 months), viral stocks requiring consistent infectivity, and compounds that crystallize or degrade at -20 degrees C.
Upright vs. chest format
Upright freezers access contents through a front door with shelves and are standard in most labs due to their small footprint and easy sample access. They experience larger temperature fluctuations when the door is opened (cold air spills out from the front). Chest freezers open from the top, retaining cold air better during access and providing more stable temperatures for the contents, making them preferred for seldom-accessed long-term storage and large sample collections. PHCbi and Thermo Fisher chest ULT models store 576-672 standard 2-inch boxes in large-capacity configurations.
Cascade refrigeration system
ULT freezers use a cascade two-stage compressor refrigeration system to reach -80 degrees C. The high-stage compressor uses HFC refrigerant (R-404A or R-290/R-170 mix) to precool the evaporator to -45 to -50 degrees C; the low-stage compressor then uses a secondary refrigerant (often R-508B or hydrocarbon blend) to extract heat from the cabinet against the precooled evaporator, reaching -80 to -86 degrees C. Two-compressor cascade systems are more reliable than single-compressor designs at these temperatures; a high-stage compressor failure raises cabinet temperature slowly while the low stage continues operating, providing a warning before critical sample temperature is reached.
Insulation quality
Cabinet insulation thickness determines the rate at which the internal temperature rises during a power failure or door-open event. Standard ULT freezers use polyurethane foam insulation (20-25 cm thick walls). Premium ULT models add vacuum-insulated panels (VIPs) to the door and selected walls, reducing energy consumption and slowing temperature rise during power loss. In the event of compressor failure, a typical -80 degrees C ULT cabinet temperature rises approximately 1 degree C per minute with the door closed and no backup system.
Backup systems
For high-value sample collections, ULT freezers can be paired with CO2 or liquid nitrogen (LN2) backup injection systems that activate when cabinet temperature exceeds a preset high-alarm threshold, injecting cryogen to maintain temperature for several hours while compressor issues are addressed. External monitoring and cloud-based alert systems using NIST-traceable probes with 24/7 SMS and email alarm notification are standard best practices for freezers containing irreplaceable biological material.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
ULT freezer capacity is specified in cubic feet or liters (internal volume) and in terms of the number of standard 2-inch (5 cm) sample storage boxes the unit can hold in standard racks; a large-capacity upright ULT holds 576-672 standard 2-inch boxes at -86 degrees C. Energy consumption of a -86 degrees C ULT freezer is typically 10-20 kWh per day; new models with hydrocarbon refrigerants and variable-speed compressors use 6-10 kWh per day at -80 degrees C setpoint. Temperature recovery after a 30-second door open event takes 3-10 minutes for research-grade ULT units, compared to 30+ minutes for consumer chest freezers. All new ULT freezer models from major manufacturers use HFC or hydrocarbon refrigerants with zero ozone depletion potential (ODP = 0), replacing CFC and HCFC refrigerants phased out under the Montreal Protocol and Kigali Amendment.&nbsp;
&nbsp;
To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.

Freezers

User Manual

Specifications Sheet - Ultra Low Temperature Lab Freezer

-86C Ultra Low Temperature (ULT) Lab Freezer, 220V

Unit Quantity

Usage

Product type

Storage capacity

Defrost

Color

Installation type

Voltage rating

Input power

Refrigerant

Net weight

Certifications

emperature range

Shelves

Shipping condition

PCR Strip Tubes & Caps

<h2 data-path-to-node="1"> What Are PCR Tube Racks?</h2>
 PCR tube racks are polypropylene holders that maintain 0.2 mL PCR tubes and strip tubes in a stable 8&times;12 (96-position) upright array during reaction setup, pre-PCR storage, and post-amplification handling. They stabilise tubes during multichannel pipetting, prevent tip deflection when dispensing with an 8-channel pipette, and serve as organisational tools for pre- and post-PCR sample management. Most racks accept both individual 0.2 mL tubes and 8-strip or 12-strip tubes in the same 96-well footprint.&nbsp;
&nbsp;
<h2 data-path-to-node="2">What you will find:</h2>
&nbsp;
<ul data-path-to-node="3">
<li>
96-well PCR tube racks for standard tube organization
</li>
<li>
Color-coded PCR tube racks for sample tracking
</li>
<li>
Stackable PCR tube racks for space-saving storage
</li>
<li>
Autoclavable polypropylene tube racks for sterile workflows
</li>
<li>
Racks for 0.2 mL PCR tubes and strip tubes
</li>
<li>
Freezer-safe PCR tube storage racks for long-term use
</li>
<li>
Ice-compatible PCR tube racks for cold-chain handling
</li>
<li>
Multi-format tube racks for mixed sample workflows
</li>
</ul>
<h2 data-path-to-node="1"> How to Choose PCR Tube Racks</h2>
 Well Diameter and Tube Compatibility Standard 96-well PCR racks have a 5.2 mm well diameter, compatible with most 0.2 mL thin-wall PCR tubes from Globe Scientific, Nest Scientific, Axygen/Corning, Eppendorf, and equivalent brands. Confirm the collar diameter of your specific tube brand before ordering if using non-standard tube geometry. Lid: Hinged Flat vs Translucent Cover vs No Lid Hinged flat lids lie flush when open for unobstructed pipette access; the lid can be closed to protect tubes during incubation or transport. Translucent polycarbonate lids allow visual sample inspection without lid removal &mdash; useful for barcode readers that scan through the cover. Lidless racks are the simplest format for bench use, where brief sample exposure is acceptable. Colour Coding Racks are available in single colours (blue, green, pink, yellow, orange) and assorted multi-colour packs. Colour-coded racks help segregate pre-PCR and post-PCR samples, reducing cross-contamination risk in labs without fully separated pre/post-PCR workspaces. Autoclavability Polypropylene PCR tube racks are autoclavable at 121&deg;C (250&deg;F) for sterilisation between use cycles. Polycarbonate lids withstand repeated autoclave cycles at standard sterilisation conditions. SBS Footprint for Automation Select PCR strip racks with an SBS/SLAS-compliant footprint (127.76 &times; 85.47 mm) to enable use with robotic liquid handlers and automated workstations when processing strip tubes on automation platforms. 
<h2 data-path-to-node="1"> Specifications Context</h2>
 Standard 96-well PCR tube racks measure approximately 130 &times; 98 &times; 33 mm (L &times; W &times; H) with 5.2 mm well diameter and 9 mm well spacing. Polypropylene construction is chemical-resistant and autoclavable at 121&deg;C. Alphanumeric embossed grid (A&ndash;H rows, 1&ndash;12 columns) matches the labelling of PCR plates and plates for straightforward sample mapping. SP Bel-Art 96-well PCR racks and equivalent formats from Heathrow Scientific and Globe Scientific are widely distributed in North American research labs.&nbsp; 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the MBP team now</a> to keep your samples in order so your workflow stays smooth from prep to analysis.

PCR Tube Racks

<h2 dir="ltr"> What Are 8-Strip PCR Tubes?</h2>
 8-strip PCR tubes are a connected row of eight individual thin-wall polypropylene tubes supplied as a single unit, designed for simultaneous processing of eight reactions per strip. The strip format accommodates multichannel pipettes at standard 9 mm well spacing, reducing setup time compared to handling individual tubes one at a time. Available in 0.2 mL for standard thermal cycler blocks and 0.1 mL for fast-block or low-profile instruments. Caps are available attached (dome or flat) or as separate cap strips for labs that prefer independent tube and cap management. 8-strip tubes are the most efficient manual format for 8- or 16-sample PCR batches &mdash; choose 0.2 mL for standard blocks, 0.1 mL for fast-block cyclers.
&nbsp;
<h2>What you will find: <a href="https://mbpinc.net/8-strip-pcr-tubes" title="8-strip PCR Tubes"></a></h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
0.2 mL 8-strip PCR tubes for standard thermal cyclers
</li>
<li dir="ltr" aria-level="1">
Clear 8-strip tubes for general PCR applications
</li>
<li dir="ltr" aria-level="1">
White 8-strip PCR tubes for improved qPCR signal detection
</li>
<li dir="ltr" aria-level="1">
Optically clear strip caps for real-time PCR assays
</li>
<li dir="ltr" aria-level="1">
Flat cap 8-strip tubes for tight sealing performance
</li>
<li dir="ltr" aria-level="1">
Attached cap strip tubes for faster workflow setup
</li>
<li dir="ltr" aria-level="1">
DNase- and RNase-free PCR strip tubes for clean reactions
</li>
<li dir="ltr" aria-level="1">
Thin-wall 8-strip tubes for fast and even heat transfer
</li>
<li dir="ltr" aria-level="1">
Compatible strip formats for most PCR and qPCR instruments
</li>
</ul>
<h2 dir="ltr"> How to Choose 8-Strip PCR Tubes</h2>
 Volume: 0.2 mL vs 0.1 mL Standard 0.2 mL strips fit conventional tall-block cyclers, including Bio-Rad T100, Eppendorf Mastercycler, and Applied Biosystems Veriti. Low-profile 0.1 mL strips are required for fast-block instruments such as the Applied Biosystems StepOnePlus, Bio-Rad CFX96 Fast, and Roche LightCycler 480, where the shallower well reduces thermal equilibration time and supports faster cycling protocols. Cap Style: Dome vs Flat, Optical vs Separate Cap Strip Attached dome caps are the standard choice for endpoint PCR, where no fluorescence is read through the cap lid. Flat optically clear attached caps &mdash; or separately purchased optical cap strips &mdash; are required for real-time qPCR when detection occurs through the top of the tube; dome caps attenuate fluorescence and compromise Ct consistency. Separate cap strips offer flexibility to mix dome and flat caps on the same strip. Attached vs Separate Caps Attached caps prevent cap mix-ups and reduce handling steps in high-throughput setups. Separate cap strips (tube strip + cap strip sold together in the same bag) allow independent tube loading and cap seating &mdash; preferred when using automated liquid handlers or when labelling the cap exterior is important. Colour Options Clear strips are standard; assorted colour packs (clear, red, yellow, blue, green) allow colour-coded sample tracking. White polypropylene strips increase qPCR fluorescence signal in bottom-read optical configurations by reflecting emission back through the detector. Strip Rigidity Split-apart strips (perforated between tubes) allow individual tubes to be broken off from the strip &mdash; useful when fewer than 8 reactions are needed and waste reduction matters. 
<h2 dir="ltr"> Specifications Context</h2>
 8-strip tube walls are typically 0.25&ndash;0.35 mm thick virgin polypropylene free of additives, antistatic agents, and dyes. Certified DNase-free, RNase-free, human DNA-free, and PCR inhibitor-free per independent lot testing. Standard packs contain 120 strips (960 reactions) for 0.2 mL format; 0.1 mL packs are often 120 strips as well. As of 2026, Axygen (Corning) PCR-0208-C and equivalent Globe Scientific formats are widely distributed through North American channels.&nbsp;
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the MBP team</a> now if your workflow depends on speed and accuracy; this format keeps everything simple without losing control over your reactions.

8 Strip PCR Tubes

DataSheet

0.1 ml Low profile 8-strip Tubes and 8-strip Caps

PCR-0108LP by Novas Bio — 0.1 mL low-profile 8-strip PCR tubes with optically clear flat caps, thin-wall medical-grade PP, DNase/RNase/Human DNA-free, non-pyrogenic, 120 strips/pack. Compatible with Applied Biosystems, Bio-Rad, and Roche qPCR systems.

Packaging

Cap Type

Volume

Tube Color

Manufacturer

0.1ml Thin Wall Clear 8-Strip Tubes Low Profile, Clear and 8-Strip Optically Clear Caps 120/PK 10PK/CS

0.1ml Thin Wall Clear 8-Strip Tubes Low Profile, White and 8-Strip Optically Clear Caps 120/PK 10PK/CS

<h2 dir="ltr">What are Corbett-style PCR Tubes?</h2>
 Corbett-style PCR tubes are 0.1 mL thin-wall polypropylene tube strips in a 4-tube format specifically designed for the circular rotor of QIAGEN/Corbett Rotor-Gene instruments. Unlike standard 8-strip tubes designed for rectangular 96-well blocks, Corbett-style 4-strip tubes seat into the 72-well circular rotor of Rotor-Gene Q, 6000, and 3000 models, where centrifugal force distributes the reaction evenly across the tube during thermal cycling. They are the instrument-specific consumables for Rotor-Gene qPCR and cannot be substituted with standard strip tubes. Tube and cap strips are packaged separately in the same bag for independent handling and labelling.&nbsp; Corbett-style 4-strips are the only strip format that seats correctly in the Rotor-Gene 72-well rotor &mdash; do not substitute 8-strip tubes. 
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
0.1 mL Corbett style 4-strip PCR tubes for Rotor-Gene systems
</li>
<li dir="ltr" aria-level="1">
Matching 4-strip caps for secure sealing
</li>
<li dir="ltr" aria-level="1">
Optical clear strip tubes for real-time PCR detection
</li>
<li dir="ltr" aria-level="1">
Thin-wall polypropylene tubes for fast heat transfer
</li>
<li dir="ltr" aria-level="1">
DNase- and RNase-free PCR strip tubes for clean reactions
</li>
<li dir="ltr" aria-level="1">
Low-profile strip formats for efficient cycling performance
</li>
<li dir="ltr" aria-level="1">
qPCR-compatible strip tubes for fluorescence-based assays
</li>
<li dir="ltr" aria-level="1">
Pre-attached cap strip options for faster workflow setup
</li>
</ul>
<h2 dir="ltr"> How to Choose Corbett Style PCR Tubes</h2>
 Instrument Generation Corbett-style tubes are compatible across QIAGEN Rotor-Gene Q (current), Corbett Rotor-Gene 6000, Rotor-Gene 3000, and earlier models that all use the 72-well circular rotor. Confirm your rotor model (72-well vs 36-well) before ordering; the 36-well rotor uses 0.2 mL tubes, not 0.1 mL 4-strips. Cap Transparency Optically clear caps are standard and required for qPCR fluorescence detection (SYBR Green, FAM, ROX, Cy5, and other dye channels). Frosted-extension caps with clear tips combine a writeable label area with optical clarity at the tube bottom &mdash; useful for batch identification. Tube and Cap Packaging Separately Tube strips and cap strips are packaged in separate bags within the same unit. This allows caps to be removed without disturbing the tubes &mdash; particularly important when using the QIAgility liquid handler for automated setup on the Rotor-Gene platform. Purity and Material Specify tubes manufactured from virgin medical-grade polypropylene, certified DNase-free, RNase-free, human DNA-free, endotoxin-free, and PCR inhibitor-free. Roentgen (X-ray) transparent designation is sometimes listed &mdash; relevant for labs that scan tubes for secondary QC. 
<h2 dir="ltr"> Specifications Context</h2>
 Corbett-style 4-strip tubes have a 0.1 mL (100 &micro;L) total volume with a working volume of 10&ndash;50 &micro;L as specified by QIAGEN for Rotor-Gene Q protocols. The polypropylene body is optically transparent, provides no background fluorescence, and is certified free of DNase, RNase, DNA, endotoxin, and PCR inhibitors per independent lot testing. Axygen (Corning) PCR-0104-C, SSI Bio Corbett-type strips, and equivalent third-party formats are widely distributed alternatives to QIAGEN OEM strips and offer equivalent performance at lower cost.&nbsp; 
&nbsp;
Check compatibility and availability with <a href="https://mbpinc.net/contact-us">the MBP team</a> to ensure the right fit for your Rotor-Gene workflow.

Corbett Style PCR Tubes

0.1ml Thin Wall PCR 4-Strip Tubes and Caps, Rotor-Gene Q compatible, Clear 250/PK 10PK/CS

PCR-0104 by Novas Bio — 0.1 mL 4-strip PCR tubes and caps, medical-grade PP, optically clear, Rotor-Gene Q 72-well rotor compatible, pyrogen/RNase/DNase/BSE-TSE-free, 250 strips/pack.

0.2 ml 8-strip PCR Tubes and 8-strip Caps

PCR-0208 by Novas Bio — 0.2 mL 8-strip PCR tubes with separate 8-strip caps, polypropylene, clear, thin-walled for efficient heat transfer, compatible with standard 96-well thermal cycler blocks. 120 strips per pack.

0.2ml Thin Wall Clear 8-Strip PCR Tubes 125/PK 10PK/CS

0.2ml Thin Wall Clear 8-Strip Tubes and 8-Strip Caps, flat caps 120/PK 10PK/CS

0.2ml Thin Wall Clear 8-Strip Tubes and 8-Strip Caps, optically clear flat caps, for qPCR 120/PK 10PK/CS

0.2ml Thin Wall Clear 8-Strip PCR Tubes with attached Frosted Flat Caps 120/PK 10PK/CS

0.2ml Thin Wall Clear 8-Strip PCR Tubes with attached Optically Clear Caps, for qPCR 120/PK 10PK/CS

0.2ml Thin Wall Clear 8-Strip PCR Tubes with attached Optically Clear Caps, for qPCR, recessed window 120/PK 10PK/CS

PCR Tubes

<h2 dir="ltr">What Are Individual PCR Tubes?</h2>
 Individual PCR tubes are single-reaction thin-wall polypropylene vessels supplied separately rather than in strip or plate format. The 0.2 mL format is the global standard for modern thermal cyclers with conventional 96-well block geometry, while 0.5 mL tubes are used with older or specially adapted blocks. Individual tubes offer the flexibility to set up any number of reactions without being constrained to a strip of 8 or 12, making them ideal for one-off reactions, optimisation runs, and protocols requiring varied tube counts. Choose individual tubes for variable reaction counts and when colour-coding samples matters. 
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
0.2 mL individual PCR tubes for standard thermal cyclers
</li>
<li dir="ltr" aria-level="1">
Flat-cap PCR tubes for easy labelling and handling
</li>
<li dir="ltr" aria-level="1">
Dome-cap PCR tubes for secure sealing performance
</li>
<li dir="ltr" aria-level="1">
DNase- and RNase-free PCR tubes for clean reactions
</li>
<li dir="ltr" aria-level="1">
Thin-wall PCR tubes for efficient heat transfer
</li>
<li dir="ltr" aria-level="1">
Autoclavable PCR tubes for sterile workflows
</li>
<li dir="ltr" aria-level="1">
Clear PCR tubes for sample visibility
</li>
<li dir="ltr" aria-level="1">
Low-retention PCR tubes for sensitive assays
</li>
<li dir="ltr" aria-level="1">
PCR tubes compatible with most standard cyclers
</li>
</ul>
<h2 dir="ltr"> How to Choose Individual PCR Tubes</h2>
 Volume: 0.2 mL vs 0.5 mL The 0.2 mL tube fits virtually all modern thermal cycler blocks, including Bio-Rad T100, Eppendorf Mastercycler NEO, and Applied Biosystems Veriti. The 0.5 mL tube is used with specific gradient blocks or older instruments; confirm block compatibility before ordering this format. Attached Cap vs No Cap Tubes with attached dome caps offer convenience and prevent cap mix-ups during high-volume workflows. Tubes with flat attached caps or sold without caps (requiring separate cap purchase) are chosen when flat optical caps or coloured caps are needed for tube tracking. Colour Options Coloured individual tubes (clear, white, yellow, red, blue, green) allow colour-based sample tracking without labelling, particularly useful in high-throughput genotyping or multiplex PCR workflows where visual differentiation reduces setup errors. Polypropylene Grade Individual tubes should be moulded from virgin polypropylene free of additives, antistatic agents, and dyes that can inhibit PCR enzyme activity. White tubes (for qPCR with fluorescence read from the bottom) must use a white polypropylene body that maximises signal reflection. 
<h2 dir="ltr"> Specifications Context</h2>
 Standard 0.2 mL individual PCR tubes have a wall thickness of approximately 0.25&ndash;0.35 mm, a conical base for complete reaction volume recovery, and are supplied in bags of 1,000 tubes for bench use. Certification includes DNase-free, RNase-free, human DNA-free, and PCR inhibitor-free per independent lot testing. Globe Scientific and Nest Scientific supply individual PCR tubes widely stocked at MBP Inc.&nbsp;
 A dependable choice when every single reaction needs full attention and accuracy. <a href="https://mbpinc.net/contact-us">Contact the MBP team</a> now to get a tailored quote!

Individual PCR Tubes

0.2ml PCR Tubes, Flat Caps, Clear, Non-sterile, 1000/pk, 10000/cs

401001 by NEST Scientific is a 0.2 mL thin-walled polypropylene PCR tube with flat cap, certified DNase-free, RNase-free, human-DNA-free, and PCR-inhibitor-free, autoclavable, supplied non-sterile in packs of 1,000 and cases of 10,000 for standard and high-throughput PCR workflows.

Volume (ml)

/Pack

/Case

<h2 data-section-id="17lohz5" data-start="0" data-end="48">What Are Externally Threaded Cryogenic Vials?</h2>
&nbsp;
Externally threaded cryogenic vials have the screw thread on the outside of the vial neck, with a cap that covers the entire top portion of the vial when closed. Manufactured from cryogenic-grade virgin polypropylene, these vials are designed to withstand temperatures from &minus;196&deg;C to +121&deg;C and are commonly used for long-term storage of cell lines, serum, blood, DNA, RNA, bacterial cultures, and other biological samples. Available in volumes ranging from 1.2 mL to 5 mL, they are offered in both self-standing and round-bottom formats. Unlike internally threaded vials, external-thread designs use an integrated sealing system rather than a separate O-ring, helping reduce handling issues. For automated decapping systems, high-throughput biobanking, and SBS-format robotic workflows, externally threaded vials are the preferred format.
&nbsp;
<h2 dir="ltr">MBP Offers:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
2D Barcoded Cryogenic Vials for automated tracking
</li>
<li dir="ltr" aria-level="1">
SBS Format Cryo Racks for robotic integration
</li>
<li dir="ltr" aria-level="1">
3D Barcoded Storage Vials for digital inventory
</li>
<li dir="ltr" aria-level="1">
Color-coded Cap Inserts for rapid identification
</li>
<li dir="ltr" aria-level="1">
Self-standing Star-foot Cryo Vials
</li>
<li dir="ltr" aria-level="1">
Silicone O-ring Sealed Leak-proof Containers
</li>
<li dir="ltr" aria-level="1">
Gamma-sterilized Aseptic Storage Tubes
</li>
</ul>
&nbsp;
<h2 data-section-id="px7lzo" data-start="891" data-end="943">How to Choose Externally Threaded Cryogenic Vials</h2>
&nbsp;
Volume
The 2 mL externally threaded vial is the industry standard for cell banking, serum aliquots, and general biospecimen storage. It fits standard 81-well cryo boxes and is suitable for most laboratory applications. Smaller 1.2&ndash;1.5 mL vials are ideal for high-density storage where space efficiency is important, while larger 3&ndash;5 mL formats are commonly used for tissue samples, bacterial glycerol stocks, and larger-volume specimens.
Base Style: Self-Standing vs. Round Bottom
Self-standing vials feature a star-foot or conical base that allows them to stand upright on laboratory benches without requiring a rack, reducing the risk of spills during handling. Round-bottom vials require rack support but often offer broader compatibility with different storage racks and cryo box configurations.
Barcoding: Plain vs. 2D Barcoded
Standard externally threaded vials include a writable surface for manual labeling and are suitable for small to medium-sized sample collections. For large biobanks and automated sample management systems, 2D barcoded vials provide Data Matrix codes that can be scanned directly into Laboratory Information Management Systems (LIMS), improving traceability and reducing manual data entry errors.
Sterility and Purity
Cryogenic vials intended for cell culture, molecular biology, and clinical research should be gamma sterilized and certified RNase-free, DNase-free, non-pyrogenic, and endotoxin-free. These certifications help protect sample integrity and reduce contamination risks during long-term storage.
&nbsp;
<h2 data-section-id="1jl751w" data-start="3061" data-end="3086">Specifications Context</h2>
&nbsp;
Externally threaded polypropylene cryogenic vials are designed for vapor-phase liquid nitrogen storage and ultra-low temperature freezers. The standard outer diameter of a 2 mL vial is approximately 12.5 mm, making it compatible with most 81-well cryo box formats. Modern external-thread designs use integrated thermoplastic elastomer sealing systems that eliminate the need for separate O-rings, reducing the possibility of seal misalignment or loss during routine handling. As of 2026, externally threaded 2 mL vials with SBS-compatible footprints and 2D barcodes are widely used in large-scale biobanking and sample repository applications.
Your research is priceless. Your storage should be equally reliable. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Connect with Molecular Biology Products Inc.</a> for a personalized quote.

Externally Threaded Cryogenic Vials

1 Inch Scan-Ready Cryoboxes Filled with Side and Bottom Barcoded Cryo Vial

CRYOKING 0.5ML CRYOGENIC VIALS,  EXTERNAL THREAD, WITH 2D BARCODED+ SIDE CODE, SELF-STANDING,PP; AUTOCLAVABLE;WHITE CAP; GAMMA RADIATION STERILED, DNASE & RNASE FREE, ENDOTOXIN FREE, FOREIGN DNA FREE,  WORKING TEMPERATURE FROM -196°C TO 121°C,  100 VIALS+1 BOX/BAG, 6 BAGS/PACK, 2 PACKS/CASE

CRYOKING 1.0ML CRYOGENIC VIALS,  EXTERNAL THREAD, WITH 2D BARCODED+ SIDE CODE, SELF-STANDING,PP; AUTOCLAVABLE;WHITE CAP; GAMMA RADIATION STERILED, DNASE & RNASE FREE, ENDOTOXIN FREE, FOREIGN DNA FREE,  WORKING TEMPERATURE FROM -196°C TO 121°C,  100 VIALS+1 BOX/BAG, 6 BAGS/PACK, 2 PACKS/CASE

CRYOKING 1.5ML CRYOGENIC VIALS,  EXTERNAL THREAD, WITH 2D BARCODED+ SIDE CODE, SELF-STANDING,PP; AUTOCLAVABLE;WHITE CAP; GAMMA RADIATION STERILED, DNASE & RNASE FREE, ENDOTOXIN FREE, FOREIGN DNA FREE,  WORKING TEMPERATURE FROM -196°C TO 121°C,  100 VIALS+1 BOX/BAG, 6 BAGS/PACK, 2 PACKS/CASE

<h2>What is a 1 kb DNA ladder?</h2>
&nbsp;
A 1 kb DNA ladder is a gel electrophoresis size standard containing a defined set of double-stranded DNA fragments spaced at or near 1-kilobase intervals, produced by digesting proprietary plasmids with restriction enzymes to generate typically 10 or more bands spanning 0.5 to 10 kb. One band, commonly at 3.0 kb, is supplied at higher concentration to serve as a bright reference band for rapid gel orientation. The 1 kb ladder is one of the most widely used size standards for routine molecular biology applications, covering the size range commonly encountered in PCR products, restriction digests, and cloned inserts.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">ZR 1 kb DNA Marker for gel electrophoresis analysis and routine DNA fragment sizing&nbsp;</li>
<li dir="ltr" role="presentation">Azura PureView&trade; 1kb DNA Ladder for the detection of DNA bands with high visibility in agarose gel systems</li>
<li dir="ltr" role="presentation">1kb Plus Opti-DNA Marker for cloning verification workflows and a wide range of DNA fragment analysis&nbsp;</li>
<li dir="ltr" role="presentation">1kb Opti-DNA Marker used in nucleic acid analysis and PCR for standard molecular weight reference&nbsp;</li>
<li dir="ltr" role="presentation">Accuris SmartCheck&trade; 1kb DNA Ladder for quality assessment of gel and DNA sizing with high precision</li>
<li dir="ltr" role="presentation">1 KB DNA Marker for routine DNA electrophoresis&nbsp;</li>
</ul>
&nbsp;
<h2>How to choose a 1 kb DNA ladder variant</h2>
&nbsp;
Choose a standard 1 kb ladder for routine PCR and restriction digest analysis
A standard 1 kb ladder with fragments spanning approximately 0.5 to 10 kb is suitable when most expected DNA fragments fall within this range, making it ideal for routine PCR verification and restriction digest analysis.
Choose a 1 kb Plus ladder when samples include smaller fragments below 500 bp
The 1 kb Plus format extends coverage down to 100 bp while maintaining the upper size range, making it useful when both small PCR products and larger DNA fragments need to be analyzed on the same gel.
Choose a 1 kb Extend ladder when samples include very large DNA fragments
The 1 kb Extend ladder expands coverage up to approximately 48.5 kb and is appropriate for large plasmids, BAC clones, and other high-molecular-weight DNA fragments analyzed on low-percentage agarose gels.
Use the recommended loading volume for accurate mass estimation
Loading the ladder according to the manufacturer's recommended amount helps ensure that any provided band mass references can be used for approximate comparison of DNA quantity based on staining intensity.
Confirm the tracking dye is compatible with your staining and imaging setup
Different ladder formulations use different tracking dyes. Some dyes may partially obscure nearby bands under UV visualization, while alternative formulations are designed to minimize interference and improve visibility across the entire ladder range.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
Standard 1 kb DNA ladders are generated from defined DNA templates digested to produce fragments of known sizes. Enhanced-intensity reference bands are included to provide a readily identifiable orientation marker during gel analysis.
Ready-to-load 1 kb ladder formats with reduced-shadow tracking dyes are commonly used in routine agarose gel electrophoresis workflows because they simplify preparation and improve overall band visibility.
<a href="https://mbpinc.net/contact-us">Contact the expert team at MBP</a> to book high-quality 1Kb DNA Ladders for your lab today.

1Kb DNA Ladders

1 KB DNA Marker

1 KB DNA Marker (DM02-00) by MBP is a DNA ladder of 14 fragments: 10000, 8000, 6000, 5000, 4000, 3000, 2500, 2000, 1500, 1000, 800, 600, 400, and 200 bp. Available in 50 µl (DM02-00), 0.5 mL (DM02-01), and 5&times;0.5 mL (DM02-02).

1 KB DNA Marker, 50μl

1 KB DNA Marker, 0.5 mL

1 KB DNA Marker, 5x0.5 mL

Universal Centrifuge Accessories

<h2>What Are Universal Centrifuge Accessories?</h2>
&nbsp;
Universal centrifuge accessories are the interchangeable components that determine the range of applications a universal centrifuge can perform. These include swing-out rotor buckets for blood tubes, conical tubes, microplates, and large bottles; fixed-angle rotors for high-speed pelleting; hematocrit and cytospin rotors; tube adapters; and aerosol-tight bio-containment lids. Selecting the appropriate accessories allows a single centrifuge to support multiple laboratory workflows efficiently and safely.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
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<ul>
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Tube adapters and inserts for compatibility with multi-volume samples&nbsp;
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Fixed-angle and swing-out rotors for varied centrifugation applications
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Lids and sealed buckets for safe and reliable operations
</li>
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PCR adapters and microplate carriers for high-throughput workflows
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Centrifuge tubes, holders, and supporting aids for efficient and complete setups
</li>
</ul>
&nbsp;
<h2>How to Choose Universal Centrifuge Accessories</h2>
&nbsp;
Swing-Out Bucket Selection by Application
Choose swing-out buckets according to the sample formats used in your laboratory. Blood tube buckets support routine clinical applications, conical tube buckets are suitable for cell culture and molecular biology, microplate carriers enable high-throughput workflows, and large-bottle carriers accommodate large-volume sample processing.
Fixed-Angle Rotors
Fixed-angle rotors provide higher centrifugal forces for microtube, PCR tube, and small-volume sample processing. Ensure that both the rotor and centrifuge motor specifications support the required operating speeds and sample formats.
Cytospin Clip Rotors
Cytospin rotors are designed for preparing microscope slides from low-cellularity samples such as body fluids. Verify compatibility with the required funnel sizes and use bio-containment features when processing potentially infectious materials.
Bio-Containment Lids
Aerosol-tight lids help contain biological samples during centrifugation and support safe laboratory practices. Regular inspection of sealing components and O-rings ensures reliable containment and long-term performance.
Reducing Adapter Inserts
Adapter inserts allow smaller tubes to fit securely within larger bucket positions. Using properly matched adapters improves balance, prevents movement during operation, and helps maintain consistent centrifugation results.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Modern universal centrifuge systems support interchangeable accessory configurations that enable rapid transitions between clinical, research, cell culture, and cytology workflows. Swing-out buckets, fixed-angle rotors, and microplate carriers provide flexibility while maintaining compatibility with a broad range of vessel formats.
Routine inspection and maintenance of accessories, including adapters, lids, and sealing components, help ensure safe operation and extend equipment lifespan. Advances in bio-containment systems and modular rotor designs continue to improve laboratory efficiency and versatility.
Time to upgrade your universal centrifuge accessories. <a href="https://mbpinc.net/contact-us">Contact the expert team </a>of Molecular Biology Products Inc. (MBP) and the find perfect match today.

1 x 15ml conical sealable insert for Z326-100H 2/pk

The Z326-100H-A15S by Hermle Labortechnik is a 1×15 ml conical sealable tube insert for the Z326-100H hermetically sealed swing-out bucket, compatible with the Hermle Z306 and Z326 centrifuges, supplied 2 per pack. The sealable design ("S" suffix) provides aerosol containment for BSL-2/BSL-3 and clinical sample workflows. Available from MBP — a registered vendor for Howard Hughes Medical Institute, Vanderbilt University, MD Anderson Cancer Center, Eurofins, and many other institutes across the USA.

Manufacture

1 x 15ml for 130mm tubes insert for Z326-100H 2/pk

Z326-100H-A15L by Hermle is a 1 x 15 ml insert for 130 mm long tubes in the Z326-100H hermetically sealed swing-out rotor, sold in a pack of 2. It accommodates the longer 130 mm tube format on the Hermle Z306 and Z326 universal centrifuges — distinct from the standard Z326-100H-A15 insert which fits shorter 15 ml tube lengths.

Rollers & Rotators Accessories

<h2>What are rollers and rotators accessories?</h2>
&nbsp;
Rollers and rotators accessories are the interchangeable tube holders, clip assemblies, wheel inserts, and platform adapters that allow a base roller or rotator instrument to securely hold and mix different tube sizes and formats. A single rotator or roller body with the appropriate accessory set can handle blood collection tubes of various sizes, standard 1.5 mL and 2 mL microcentrifuge tubes, 15 mL and 50 mL centrifuge tubes, and bottles of different diameters. Without the correct holder, tubes may not sit securely during rotation, may not be mixed effectively due to poor contact with the roller surface, or may become unsecured and spill during the mixing cycle.
&nbsp;
<h2 dir="ltr">What you will find: </h2>
&nbsp;
<ul>
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Interchangeable Tube Carousels: Specialized discs for holding different diameters of test tubes and vials.
</li>
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Universal Rotating Plates: Versatile platforms that allow for a mix of clips to be mounted simultaneously.
</li>
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Replacement Roller Bars: Durable, easy-to-clean bars to maintain or expand the capacity of your tube rollers.
</li>
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Vessel Clips &amp; Clamps: Secure mounting hardware for larger flasks and specialized containers.
</li>
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Horizontal &amp; Vertical Tube Holders: Adapters that allow you to change the angle of rotation for specific protocols.
</li>
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Stacking Kits: Hardware designed to safely tier multiple rotators to save valuable bench space.
</li>
</ul>
&nbsp;
<h2>How to choose rollers and rotators accessories</h2>
&nbsp;
Match tube holder specifications to your exact tube dimensions
Tube holders and clips are designed for specific tube outer diameters and lengths, and a holder designed for one tube format may not securely retain a different tube size. Blood collection tube holders are typically sized to match standard 13 &times; 100 mm or 16 &times; 100 mm Vacutainer-type tubes, while microcentrifuge tube clips hold 1.5 mL and 2 mL tubes by their caps.
Confirm holder compatibility with your specific roller or rotator model
Tube holders and wheel inserts from different manufacturers may not be interchangeable between roller and rotator models, since the mounting mechanism, wheel diameter, and rotation geometry differ. Confirm that the specific accessories you need are listed as compatible with your instrument model before purchase.
Choose the right wheel format for your mixing application
End-over-end rotators typically use a flat wheel with individual tube positions or a drum format with clip-type holders around the perimeter. Wheels with fewer positions hold tubes more securely at higher rotation speed; high-capacity drum formats allow more samples per rotation cycle at the cost of per-position security at higher speeds.
Consider multi-format holder sets for flexibility across tube sizes
Labs mixing different tube sizes benefit from a set of holders covering common formats &mdash; blood tube, microcentrifuge, and conical tube &mdash; allowing the same rotator to be reconfigured for different sample types without separate instruments per format.
Check that the roller surface contact area matches the bottle or tube being mixed
For tube rollers, the tube or bottle must contact both driving rollers simultaneously for uniform rolling. Bottles or tubes much wider or much narrower than the roller spacing may not roll uniformly, and roller spacing adjustment or specific bottle roller inserts that match the bottle diameter are needed to ensure even, controlled rolling.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
Secure tube retention during rotation prevents tubes becoming loose and interrupting mixing. Rotator manufacturers design holders to specific torque and speed limits; exceeding the rated speed risks retention failure. As of 2026, multi-format rotator kits covering blood tubes, microcentrifuge tubes, and 50 mL conical tubes are the standard first accessory purchase, providing flexibility without separate orders per tube type.
Not sure which clip or carousel is compatible with your current hardware? <a href="https://mbpinc.net/contact-us">The MBP team is here to assist</a>&mdash;reach out for a custom quote on the accessories you need.

Roller & Rotator Accessories

1 x 15ml tube holder, pack of 2

R4040-150 by Benchmark Scientific is a vertical tube holder for a single 15mL tube, sold in a pack of 2, for use with the RotoBot Mini and RotoBot Standard programmable rotating mixers.

1 x 50ml tube holder, pack of 2

The R4040-500 by Benchmark Scientific is a vertical tube holder for a single 50mL tube, sold in a pack of 2 as an accessory for the RotoBot line of programmable rotating mixers.

<h2>What is a Tube Furnace?</h2>
&nbsp;
A tube furnace is an electric heating instrument with a central cylindrical bore through which a sealed work tube is inserted, surrounded on the outside by resistive heating elements embedded in refractory insulation. Gas inlet and outlet fittings seal the tube ends with flanges, enabling the introduction of specific gas atmospheres or evacuation for vacuum operation. Quartz (fused silica) tubes are transparent, allowing visual observation, and are rated for continuous use to 1,200 degrees C. Alumina (Al2O3) ceramic tubes are opaque and stable to 1,700 degrees C, with higher chemical resistance to alkaline materials. The uniform heating zone - the central portion of the tube where temperature uniformity meets the manufacturer's specification (typically plus or minus 1-5 degrees C) - defines where samples must be placed for consistent results. Choose a tube furnace for any process requiring a controlled gas atmosphere or vacuum; choose a muffle furnace for open-air ashing, calcination, or sintering where atmosphere control is not needed.
&nbsp;
<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
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CVD tube furnace systems come fully equipped with gas mixing and pumping hardware, making them a complete solution for high-level chemical vapor deposition.
</li>
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Rotary and tilting furnaces provide continuous sample agitation during the heating process, ensuring every part of your material receives uniform thermal treatment.
</li>
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Split tube furnace designs feature a top-opening structure that makes it incredibly easy for your team to swap tubes or inspect samples mid-run.
</li>
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Multi-zone heating units allow you to create specific temperature gradients across the tube, giving you professional-level control over complex thermal profiles.
</li>
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RF generators and PE/CVD setups provide the specialized power needed for plasma-enhanced processes, perfect for cutting-edge thin-film research.
</li>
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Alumina tube furnaces utilize high-purity ceramic tubes and sealing flanges to maintain a clean, high-temperature environment up to 1700&deg;C.
</li>
</ul>
&nbsp;
<h2>How to Choose a Tube Furnace</h2>
&nbsp;
Work tube material
Quartz (fused silica) tubes are standard for processes up to 1,200 degrees C, are transparent (allowing visual process monitoring), and are available in diameters from 25 to 200 mm. Above 1,200 degrees C, quartz devitrifies (turns opaque and brittle) and softens. High-purity alumina (99.7% Al2O3) tubes extend the usable range to 1,700 degrees C and are chemically more resistant than quartz to alkali vapors and some metal-organic precursors used in CVD. Specialty tube materials (molybdenum, tungsten, Inconel) are used for corrosive-atmosphere or extreme-temperature applications.
Single-zone vs. multi-zone heating
Single-zone tube furnaces produce one uniform temperature zone (typically 10-30 cm long) and are standard for most annealing, sintering, and CVD applications. Multi-zone furnaces have two or more independently controlled heating zones along the tube length -- enabling temperature gradients for Bridgman crystal growth, sequential thermal profiles (debinding followed by sintering in a single run), or extended uniform zone length by running outer zones at higher power to compensate for end cooling. Multi-zone configurations feature 30-segment programmable PID control per zone and temperature control accuracy of plus or minus 1 degree C in research-grade models.
Bore diameter and heated zone length
Standard bore sizes are 25 mm (compact single-sample), 50 mm (most common research format), 80 mm, and 100 mm inner diameter for larger samples or substrate wafers. Quartz tube diameters range from 25 to 300 mm up to 1,200 degrees C; alumina tubes are available from 25 to 100 mm for processes to 1,700 degrees C. The heated zone length (10-60 cm for single-zone models) determines maximum sample length; all sample material must fit within the uniform hot zone.
Horizontal vs. vertical orientation
Horizontal tube furnaces position the tube axis parallel to the bench surface, are the most common configuration, and allow easy sample insertion via push-rod with consistent gas flow from one end to the other. Vertical tube furnaces orient the tube perpendicular to the bench, enabling gravity-assisted processes such as powder sintering, where material settles uniformly in the crucible, and crystal growth methods that exploit natural convection. Vertical configurations also reduce bench footprint for space-limited labs.
Split-hinge design
Split-hinge (clam-shell) tube furnaces open along the length of the furnace body to allow tube insertion or removal without threading through the furnace from one end. Benefits include faster tube material changes during process development, the ability to use shorter tube segments, and rapid forced cooling by opening the furnace after a run. Split-hinge models are popular for CVD process development labs where tube configurations change frequently.
Gas flow and safety requirements
Hydrogen-containing atmospheres require dedicated safety measures beyond standard inert gas setups: combustible gas sensors, local exhaust ventilation, solenoid emergency shut-off valves, nitrogen pre- and post-purge sequences, and grounding of all gas fittings. Mass flow controllers (MFCs) provide precise gas flow rate control (0-500 standard cm3 per minute, typical range) for reproducible CVD deposition conditions. Vacuum operation requires rotary vane or turbomolecular pumps, vacuum gauges, and leak-tested stainless steel Swagelok connections.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Uniform heating zone temperature uniformity of plus or minus 1-3 degrees C for research-grade single-zone tube furnaces is measured by traversing a calibrated thermocouple along the tube axis at maximum setpoint; confirm this measurement in supplier documentation. The maximum heating rate is typically 10-30 degrees C per minute; room temperature to 1,700 degrees C takes approximately 170 minutes at the maximum rate for alumina tube models with MoSi2 elements. Tube furnace bore diameters of 50 mm and 80 mm cover the majority of research sample formats; 25 mm compact models suit single-sample inline gas-flow experiments. Integrated turnkey tube furnace systems combining furnace body, MFC gas control manifold, vacuum pump, and 30-segment programmable touchscreen controller are available from specialist manufacturers, reducing new CVD process setup time significantly.
&nbsp;
To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.

Tube Furnaces

Stainless steel vacuum sealing flanges w/ pressure gauge

Standard Package

Across International Tube Furnace Flange Setup

How to Program the Across International Tube Furnace Eurotherm Temperature Controller?

1-Zone 1200°C 50mm OD Split Tube Furnace

STF1200 50x600mm (ODxlength) portable top-open tube furnaces feature spiral wire coils embedded in Mitsubishi (Japan) alumina fiber insulation. A double walled steel internal housing helps minimize heat loss to exterior surface. Furnace operation is controlled by a 30-segment digital controller. All our furnaces are CE compliant.\r\n\r\n