U.S.SOLID 6L Cryogenic Container Liquid Nitrogen Tank Semen Dewar with 6 Canisters Carry Bag Brand: U.S. Solid Constricted using aircraft grade aluminum alloy Comes with 6 canisters for biological sample storage, only suitable for storage of liquid nitrogen, not for transport AN insulated padded cover with straps is also provided which makes transport easy Static holding time for this tank is more than 40 days.