Name: Microtube Storage Freezer Box
Brand: Labnet International
SKU: R7900
Price: 12.53 USD
Availability: InStock

<h2 data-section-id="1k6bkqk" data-start="294" data-end="320">What Are Freezer Boxes?</h2>
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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&times;5), 81-place (9&times;9), and 100-place (10&times;10).
The 81-well, 2-inch freezer box is one of the most commonly used formats for storing 1.8&ndash;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.
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<h2 dir="ltr">What you will find:</h2>
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Polypropylene Freezer Boxes for 1.5mL and 2.0mL tubes
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High-capacity Freezer Boxes for 5.0mL midi tubes
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Universal Freezer Boxes with no wells for bulk storage
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Alphanumeric Indexed Storage Boxes for rapid tracking
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Conical-base supported Tube Racks for stability
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Moisture-resistant Frosted Writing Areas for labeling
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Autoclavable Cryogenic Boxes for sterile workflows
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Fully Assembled Storage Systems with secure lids
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<h2 data-section-id="unvo09" data-start="1142" data-end="1172">How to Choose Freezer Boxes</h2>
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Material: Cardboard vs. Polycarbonate vs. Polypropylene
Cardboard freezer boxes with water-resistant coatings provide an economical solution for long-term storage in &minus;80&deg;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&deg;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&times;9) freezer box is typically designed for cryogenic vials up to approximately 13 mm outer diameter, making it suitable for most 1.8&ndash;2.0 mL cryovials.
A 100-well (10&times;10) freezer box accommodates smaller tubes up to approximately 12 mm outer diameter, including many 1.2&ndash;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&ndash;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 &minus;196&deg;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.
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<h2 data-section-id="1jl751w" data-start="3663" data-end="3688">Specifications Context</h2>
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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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Freezer Boxes

Labnet International

Key Specifications

Microtube Storage Freezer Box

The Labnet Microtube Storage Freezer Box by Labnet International is a polypropylene storage box with a telescoping lid and 50 places for 1.5/2.0 mL tubes. The telescoping lid accommodates tubes of varying lengths, and lids are alphanumerically labeled. The box can be used for freezer storage and autoclaved, making it a practical reorder for lab managers keeping microtube samples organized.