6' flexible stainless steel hose for liquid nitrogen transfer. Use with diffuser 220-95372-29 to manually fill either the Compact or Large Freezer/Mill from a a liquid nitrogen tank or large portable Dewar. Or, connect between the Large Freezer/Mill and a 20-22psi liquid nitrogen tank for Auto-Fill capability. Fitted with a 3/8 in. (9.5 mm) NPT male fitting on one end and a CGA295 female fitting on the other end.