Heathrow Scientific
Heathrow Scientific Cardboard Cryogenic Freezer Box for Small Tubes - 120220 Series | 0.2 mL & 0.5 mL
Heathrow Scientific Cardboard Cryogenic Freezer Box for Small Tubes - 120220 Series | 0.2 mL & 0.5 mL
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Standard cryobox dividers are designed around 1.5–2.0 mL tube diameters, leaving labs that work with 0.2 mL PCR tubes or 0.5 mL microtubes without a properly fitted freezer storage option. The Heathrow Scientific Cardboard Cryogenic Freezer Boxes for small tubes solve this gap with purpose-built well grids sized specifically for sub-milliliter tubes. The 0.2 mL version packs 144 wells (12 × 12) into a standard cryobox footprint, while the 0.5 mL version provides 81 wells (9 × 9) — both with integrated dividers and coated cardboard construction rated for −80 °C storage. Sold in packs of 10, these boxes bring the same disposable economy of standard cardboard cryoboxes to the small-tube segment that plastic manufacturers often overlook.
Features and Benefits
Purpose-Built for Small Tubes: Well diameters of 9.5 mm (0.2 mL) and 12 mm (0.5 mL) grip smaller tubes securely — no rattling, tilting, or falling through oversized wells.
High Density: The 0.2 mL version fits 144 tubes in a standard cryobox footprint — 44% more capacity than a 100-well box — making it the densest small-tube storage option available in cardboard.
Integrated Dividers: Pre-assembled cell dividers are included, eliminating the need to purchase and assemble inserts separately.
Coated Cardboard, −80 °C Rated: Moisture-resistant coating protects the box through standard freezer storage cycles without premature breakdown.
Standard Cryobox Footprint: 5.2 × 5.2-inch base fits all upright and chest freezer racks designed for 2-inch cryoboxes.
Specifications
| Property | Value |
|---|---|
| SKU | 120220 (0.2 mL) / 120221 (0.5 mL) |
| Brand | Heathrow Scientific |
| Material | Coated Cardboard |
| 0.2 mL Version | 144-place (12 × 12), well ⌀ 9.5 mm, H: 1.1 in (2.9 cm) |
| 0.5 mL Version | 81-place (9 × 9), well ⌀ 12 mm, H: 1.6 in (4.1 cm) |
| Base Footprint | 5.2 × 5.2 in (13.3 × 13.3 cm) |
| Temperature Rating | −80 °C |
| Pack Size | 10 per pack |
| Color | White |
| Country of Origin | China |
Laboratory Applications
Archival freezer storage of 0.2 mL PCR tubes and strip tubes from completed qPCR, RT-PCR, and genotyping experiments
Organized cold storage of 0.5 mL aliquot tubes used in enzyme stocks, primer working solutions, and small-volume reagent libraries
Clinical genomics and molecular diagnostics labs that generate large numbers of small-volume extracts requiring long-term freezer archiving
Frequently Asked Questions
Do these boxes include dividers?
Yes. Unlike the standard cardboard cryobox-and-lid sets, these small-tube boxes ship with integrated pre-assembled dividers sized to the specific tube diameter.
Will 0.2 mL PCR strip tubes fit?
Individual 0.2 mL tubes fit the 9.5 mm wells. Connected 8-tube PCR strips will not fit — they must be cut into individual tubes first.
Can I use these in a liquid-nitrogen freezer?
No. Cardboard construction is rated for −80 °C mechanical freezers only. For liquid-nitrogen storage of small tubes, use polycarbonate or polypropylene cryoboxes.
Quality Assurance
Heathrow Scientific cardboard cryogenic products are manufactured with moisture-resistant coatings and pre-assembled dividers. Each lot is inspected for divider alignment, well-diameter accuracy, and lid fit before release.
Academic and Institutional Pricing
LabSupplies.com offers tiered quantity pricing for academic and research institutions. As an authorized dealer, we ship directly from USA inventory.
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