Laboratory freezers represent the most critical footprint in a research facility, and utilizing bulky or rapidly degrading cardboard boxes compromises both storage density and sample safety. The Heathrow Scientific Corrugated Polypropylene Cryogenic Freezer Box provides a highly durable, sustainable alternative to cardboard that resists moisture and withstands repeated freeze-thaw cycles without breaking down. Manufactured from robust corrugated polypropylene, these boxes safely secure samples down to -80°C in mechanical ultra-low freezers. To maximize your incoming inventory space, they arrive completely flat-packed and assemble effortlessly. With multiple configurations available—ranging from 144-place microtube boxes to 16-place 50mL conical boxes—you can standardize your entire freezer architecture on one reliable material. Features and Benefits Moisture Resistant: Corrugated plastic repels condensation and prevents the mold growth commonly seen with degrading cardboard. Deep Freeze Rated: Specifically engineered to remain stable during repeated thermal cycling down to -80°C. Flat-Packed Delivery: Drastically reduces incoming shipping volume and necessary stockroom shelf space. Comprehensive Formats: Available in exact dimensions for 0.2mL, 0.5mL, 1.5/2.0mL, 15mL conicals, 50mL conicals, and squat vials. Included Dividers: Every box includes properly sized, pre-assembled dividers for immediate use. Specifications Property Value Brand Heathrow Scientific Material Corrugated Polypropylene Temperature Rating Down to -80°C (Mechanical Freezers / Vapor Phase) 144-Place Box 0.2 mL Tubes (7.9 mm wells) 81-Place Box (0.5mL) 0.5 mL Tubes (12 mm wells) 81-Place Box (1.5/2.0mL) 1.5 / 2.0 mL Tubes (12 mm wells) 100-Place Squat Box 5-15 mL Squat Vials (17 mm wells) 36-Place Box 15 mL Conicals (19.8 mm wells) 16-Place Box 50 mL Conicals (31.6 mm wells) Packaging Pack of 10 Boxes Laboratory Applications Standardizing -80°C mechanical freezer inventory with durable, uniform footprint boxes Archiving large tissue samples or cell cultures in 15mL and 50mL conical formats Replacing compromised cardboard stock in humid, high-traffic clinical environments Frequently Asked Questions Will these fit in standard freezer racks?Yes, the 81-place and 100-place boxes utilize standard 5.2 x 5.2 inch footprints (or similar universal sizing) to easily slide into standard stainless steel freezer racking systems. Are the dividers built-in or removable?The pre-assembled corrugated dividers are dropped into the box and can be removed if you need an open-format storage bin. Can these go in liquid nitrogen?These are rated safely down to -80°C. For vapor phase liquid nitrogen, they can be utilized, but direct submersion is not recommended. Quality Assurance Heathrow Scientific products are engineered to rigorous standards for the clinical and research laboratory. This product is manufactured under strict quality controls to ensure material integrity, dimensional accuracy, and reliable performance. Ordering Authorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide. Catalog Numbers (MPN) Catalog / Item No. (MPN) Configuration 120379 144-Place (0.2mL) - White, Pack of 10 120383 81-Place (0.5mL) - White, Pack of 10 120376 81-Place (1.5/2.0mL) - Blue, Pack of 10 120262 81-Place (1.5/2.0mL) - White, Pack of 10 120428 100-Place (Squat Vial) - White, Pack of 10 120392 36-Place (15mL) - Blue, Pack of 10 120391 36-Place (15mL) - White, Pack of 10 120367 16-Place (50mL) - Blue, Pack of 10 120366 16-Place (50mL) - White, Pack of 10
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