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Vacuum hose is for supplying and transferring liquid nitrogen from one container to another container. Danclan has two types of vacuum hose: normal hose and vacuum jacketed transfer hose. When transferring liquid nitrogen, the normal hose will be frost on the surface due to ultra-low temperature, and the vacuum jacketed hose have better insulation performance that will not be frost on the surface easily. It is also necessary to wear cryogenic protection when operate with vacuum hose. In all, if users only need supplying or transferring liquid nitrogen, normal hose is enough, and vacuum jacketed hose will be better if need less loss of LN2 and better performance. This vacuum hose mainly has 1 meter, 1.5 meters and 2 meters, and customized is also available but need more time.