CELLTREAT Scientific Products Storage Box, CF Cryogenic Vial, 25 Place. CELLTREAT Freeze Cryogenic Vial Storage Boxes are made from durable polycarbonate material designed to withstand a wide temperature range and is a reusable, autoclavable alternative to disposable racks. Ventilation holes in the lids and bases prevent vacuum sealing in freezer. Storage Boxes are labeled with numeric markings on the base of the box for easy identification of individual positions, with or without the lid. Fits 1mL - 1.8mL vials. RNase/DNase free and non-pyrogenic. Every case is printed with the lot number for quality traceability. Packaged non-sterile, 5/case.