Popular freezer boxes hold 1.5-2.0 ml tubes and most cryo vials up to 60 mm tall. Boxes feature vent slots under each cell and writing surfaces on the lids. Polypropylene boxes withstand freezing (-90°C) and autoclaving. For storage in liquid nitrogen, see the 2381-5300 Zylar® box.

BestBox® 81-place boxes fit most freezer racks. Permanent dividers wont lift out. Cell dimensions are approximately 0.5 x 1.25 H (12.7 x 31.7 mm H). Outer dimensions are 5.1 L x 5.1 W x 1.8 H.