Number of Canisters= 6, Neck Opening= 5 in, Number of 1/2 cc Straws= 4500, Overall Height= 26.5 in, Liquid Nitrogen Capacity= 47.4L, Outside Diameter= 20 in, Static Evaporation Rate= .39, Canister height= 11 in, Normal Working Days= 76, Weight Full= 120.4 Lbs Durable, tamper-proof lid design. Easy maintenance lid design. Superior strength, lightweight aluminum construction. High strength neck tube reduces liquid nitrogen loss. Locking tab. Color-coded canister/lid numbering system. Advanced Chemical Vacuum Retention System - designed for superior vacuum performance over the life of the product. Spider design - for easy retrieval and insertion of product canisters. Insulation - MVEï¿½s advanced insulation system provides maximum thermal performance.