Freezer boxes are lidded grid-format containers for organizing cryogenic vials and microcentrifuge tubes inside −80°C ultra-low temperature freezers and liquid nitrogen storage systems. Available in cardboard (water-resistant coated) and polycarbonate hard-wall formats with well configurations of 25, 81, and 100 positions, sized for 1–5 mL cryogenic vials. Both materials are rated from −196°C to +121°C. MBP carries Globe Scientific cardboard storage boxes polycarbonate freezer boxes (ISO 9001:2015 certified) and ships to labs across the US, Canada, and internationally. MBP is a registered vendor for Howard Hughes Medical Institute, Vanderbilt University, and MD Anderson Cancer Center.
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Freezer boxes are lidded storage containers with a numbered grid of individual wells designed to organize cryogenic vials, microcentrifuge tubes, and centrifuge tubes in ultra-low temperature (ULT) freezers, liquid nitrogen dewars, and vapor-phase cryogenic storage systems. Standard formats include 2-inch (51 mm) and 3-inch (76 mm) box heights, with common well configurations of 25-place (5×5), 81-place (9×9), and 100-place (10×10).
The 81-well, 2-inch freezer box is one of the most commonly used formats for storing 1.8–2.0 mL cryogenic vials in biobanking, pharmaceutical, and research laboratories. Cardboard and hard-wall freezer boxes are both suitable for ultra-low temperature storage, while polycarbonate and polypropylene boxes are preferred for applications requiring repeated handling and autoclaving.
Polypropylene Freezer Boxes for 1.5mL and 2.0mL tubes
High-capacity Freezer Boxes for 5.0mL midi tubes
Universal Freezer Boxes with no wells for bulk storage
Alphanumeric Indexed Storage Boxes for rapid tracking
Conical-base supported Tube Racks for stability
Moisture-resistant Frosted Writing Areas for labeling
Autoclavable Cryogenic Boxes for sterile workflows
Fully Assembled Storage Systems with secure lids
Material: Cardboard vs. Polycarbonate vs. Polypropylene
Cardboard freezer boxes with water-resistant coatings provide an economical solution for long-term storage in −80°C freezers and vapor-phase liquid nitrogen environments. These boxes are lightweight and disposable but are not autoclavable.
Polycarbonate (PC) freezer boxes feature transparent lids that allow sample identification without opening the box and can withstand autoclaving at 121°C. Polypropylene (PP) freezer boxes also support autoclaving and offer enhanced chemical resistance. For frequently accessed sample collections, PC and PP boxes provide greater durability than cardboard alternatives.
Well Count: 81-Well vs. 100-Well
An 81-well (9×9) freezer box is typically designed for cryogenic vials up to approximately 13 mm outer diameter, making it suitable for most 1.8–2.0 mL cryovials.
A 100-well (10×10) freezer box accommodates smaller tubes up to approximately 12 mm outer diameter, including many 1.2–1.5 mL cryovials and standard microcentrifuge tubes, maximizing storage density within the same footprint.
Box Height: 2-Inch vs. 3-Inch
2-inch freezer boxes are commonly used for cryogenic vials up to 2 mL. Larger 3-inch boxes are designed for higher-capacity sample tubes, including 3–5 mL cryovials and selected centrifuge tube formats. When using mixed box heights within freezer racks or drawers, verify rack compatibility before purchasing.
Temperature Rating and Liquid Nitrogen Compatibility
Freezer boxes are available for storage temperatures as low as −196°C. Hard-wall polycarbonate and polypropylene boxes are generally preferred for demanding cryogenic applications and repeated handling. Cardboard freezer boxes are commonly used in vapor-phase liquid nitrogen storage and ultra-low temperature freezers.
2-inch coated cardboard freezer boxes are available in both 81-well (9×9) and 100-well (10×10) configurations. The 81-well format is designed for 1–2 mL cryovials with outer diameters up to approximately 13 mm, while the 100-well format accommodates smaller 1.2–1.5 mL tubes and cryovials up to approximately 12 mm in diameter. Both cardboard box formats are suitable for vapor-phase liquid nitrogen storage but are not autoclavable.
For laboratories requiring reusable storage solutions, 2-inch polycarbonate are available in 81-well and 100-well configurations. These hard-wall freezer boxes support 1–2 mL cryovials, provide excellent durability for repeated handling, and can be autoclaved at 121°C. Their rigid construction makes them well suited for cryogenic storage applications and routine laboratory use.
For larger sample tubes, 3-inch coated cardboard freezer boxes are available in a 36-well (6×6) configuration. These boxes accommodate tubes up to 5 mL capacity and are commonly used for long-term storage in ultra-low temperature freezers and vapor-phase liquid nitrogen environments. Like other cardboard freezer boxes, they are not autoclavable.
Freezer boxes are available in multiple materials, dimensions, and well configurations to accommodate a wide range of cryogenic vials and laboratory tubes. When selecting a freezer box, verify tube outer diameter, tube height, and storage requirements to ensure compatibility with the box well dimensions.
For complete cryogenic sample storage solutions, explore cryogenic vials and related cryogenic storage products designed for use in laboratory, biobanking, pharmaceutical, and clinical research environments.
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