- Propane Refill Adapter for 1 lb tanks This 3 ft propane refill adapter hose features quality rubber for safe, leakage-free operation and excellent weather resistance. The 1 lb tank refill adapter is made of solid brass to ensure secure, durable, long-lasting use. It is built and tested to strict quality control standards. - Wide range of compatibility This propane refill hose can refill 1 lb camping bottles and connect directly to 20–50 lb propane tanks, convenient for those with larger tanks. Fits heaters, camp stoves, portable grills, tabletop grills, and more. Ideal for camping, tailgating, heating needs, or outdoor cookouts. - 3 ft hose features Length: 3 feet (36 inches, 91 cm). Rated pressure: 350 PSI. Connection: QCC1/Type1 to 1" x 20 female throwaway cylinder thread. 350 PSI high-pressure propane extension hose. Easy and quick attachment to connect your big cylinder to the small 1 lb tank without moving or carrying, saving time and trouble. - Use guidance An overflow protection device is built into the QCC adapter. Connect the QCC1 adapter to your tank first and open gas for a few seconds, then connect the 1 lb filler adapter to your small tanks, or it may not work. This refill adapter for 1 lb tanks includes an on/off control valve; if you do not want to refill, close the refill valve. The other side uses a QCC1 standard 20–50 lb propane tank connector.