For Denville 81 & 100 Hinged place polypropylene cryo vial boxes, R8110 and R8310 series Metal Freezer Storage Racks are constructed of high-quality, corrosion resistant stainless steel. Handles at both ends accommodate freezers with right or left handed doors. Our extensive product range will accommodate all type of sample containers including 2”, 3”, and 5” boxes, microtiter and deepwell plates and 15&50mL centrifuge tubes. Racks have been configured to fill all major ultra low (-80°) freezers on the market; racks are designed for Upright and Chest ultra low freezers.