VEVOR Liquid Nitrogen Tank 30 L Aluminum Alloy LN2 Container Dewar 6 Canisters Low-Temperature Storage Expert Superior Insulation Aviation Aluminum Alloy Material Detailed Design Wide Applications Vacuum Nozzle Daily Evaporation: 90110 g/D, Capacity: 7.93 gal / 30L, Hole Diameter of Mouth: 1.96 in / 5 cm, Item Model Number: YDS-30, Canisters Quantity: 6pcs(2 without holes&4 with holes), Product Dimensions: 17.7 x 17.7 x 29.3 in / 449 x 449 x 745 mm, Net Weight: 16 kg / 35.3 lbs, Outer Dimensions of Container:? 17.7 x 29.3 in /? 44.9 x 74.5 cm, Static Preservation Time: 224246 days.