This popular hose assembly is commonly used to connect a high pressure propane appliance to a 20 lb. propane tank. The 1"x20 brass fitting end on the hose allows you to connect to the appliance where you would normally have connected a 1 lb. disposable propane cylinder. The Type-1 (QCC-1) valve on the other end of the hose connects to the 20 lb. tank. Use this hose in conjunction with a 20 lb. tank to replace a disposable cylinder. Length: 60 inches.