ITEM DESCRIPTION 【WIDE COMPATIBILITY】This propane refill adapter hose can refill the 1lb camping bottle and connect 20-50Lb propane tank directly. convenient for those with larger tanks. Fits for heater, camp stove, portable grill, tabletop grill, and more. Great for camping, tailgating, heating needs or having an outdoor cookout. 【FEATURE】Length - 3 feet / 36 Inch / 91 cm. Rate pressure - 350PSI. Connection - QCC1/Type1 Connector to 1" x 20 Female Throwaway Cylinder Thread. 350PSI rated high pressure propane extension hose. Propane adapter refill hose is easy and quick attachment for easier installation, can easily connect your big Cylinder to the small 1LB propane tank without move or carry. 【USE ADVICE】Over flow protection device is designed in the QCC adapter, connect the QCC1 adapter to your tank first and open gas for few seconds then connect the 1lb adapter to your small tanks or it may not work. If you do not want to refill, close the refill valve. One pound propane tank on one side with adapter with on off control valve. The other side uses QCC1 standard 20-50 lb propane tank connector. You can easily connect your large cylinder to a small 1-pound propane tank.