Freezers.Accessories

<h2>What Are Laboratory Freezer Accessories?</h2>
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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.
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<h2 dir="ltr">What You Will Find:</h2>
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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.
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CO2 Backup Systems: Critical emergency backup solutions for ultra-low freezers that safeguard your inventory against sample loss during power outages or mechanical failures.
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Insulated Shipping Cubes: Advanced VIP insulated containers engineered for the secure and temperature-stable transport of high-value biological materials.
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Specialized Inventory Tools: Custom-fit shelving and racking solutions that ensure unrestricted airflow and easy access to your most important specimens.
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<h2>How to Choose Freezer Accessories</h2>
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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).
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<h2>Specifications Context</h2>
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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;
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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

Cold Storage Units

Ai VIP Insulated Shipping Cube

B25-20L by Ai is a −25°C VIP (Vacuum Insulated Panel) insulated shipping cube with a 20 L internal volume and six rechargeable PCM cold pads, maintaining −25°C to −15°C for up to 72 hours. Reusable alternative to dry ice for frozen biological sample and reagent shipment. External dimensions: 16×13.5×14 in; weight: 25 lbs.

Manufacture

Ai -25°C VIP Insulated 20L Shipping Cube with Rechargeable PCM

Ai 2-8°C VIP Insulated 20L Shipping Cube with Rechargeable PCM

Ai Reusable -70C VIP Insulated 20L Ultra-Cold Shipping Cube

CO2 Backup System for Ai -86C ULT Ultra-Low Freezers

G-CO2 by Across International (Ai) is a CO2 backup system for Ai Glacier and RapidChill -86 °C ultra-low temperature (ULT) freezers. In the event of compressor failure or power loss, it automatically delivers CO2 into the cabinet to maintain sub-zero temperatures and protect irreplaceable biological samples including cell lines, serum banks, and clinical specimens. An essential safeguard for institutional biostorage facilities and high-value sample collections. Contact MBP for full technical datasheet.

Electrical requirements

Cooling

Cooling type

Refrigerant

Injection cycle during operation

Thermostat

Cryo valve

Backup battery

Safety

Compatible models

Connection to freezer

Maintenance

SST Storage Drawers for Ai  RapidChill -86°C Stackable Ultra low Freezer

The DrawerSet-G04h by Across International (Ai) is a stainless-steel storage drawer set rated for -86°C continuous operation, designed for the Ai RapidChill G04h ULT freezer. The set includes 4 drawer units (20 total drawers) with capacity for 60 × 2-inch vial boxes or 6,000 × 1.5 mL cryogenic vials. Vials, vial boxes, and the G04h freezer are sold separately.

SST Storage Drawers for Ai G04h -86C Freezers 6,000 Vials Max.

SST Storage Drawers for Ai G26h -86C Freezers 50,000 Vials Max.

SST Storage Drawers for Ai G12h -86C Freezers 21,600 Vials Max.

SST Storage Drawers for Ai G20h -86C Freezers 40,000 Vials Max.

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.