VEVOR Liquid Nitrogen Tank 20 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: 5.28 gal / 20L, Hole Diameter of Mouth: 1.96 in / 5 cm, Item Model Number: YDS-20, Canisters Quantity: 6pcs(2 without holes&4 with holes), Product Dimensions: 15.1 x 15.1 x 26.4 in / 384 x 384 x 670 mm, Net Weight: 21.8 lbs / 9.9 kg, Outer Dimensions of Container:? 15.1 x 26.4 in /? 38.4 x 67.0 cm, Static Preservation Time: 165172 days.