Propane Adapter 1 lb to 20 lb for 16 oz Propane Fuel Cylinders Solid Brass Universal Propane Refill Adapter for 1 lb Tanks <p>Outstanding Refilling : Works for refilling 1 pound tank green propane cylinder from 5-100 pound LP tanks, great money saver</p> <p>Sturdy Construction : 100% solid brass fitting with high quality rubber o-ring provides tight and leak-free connection</p> <p>Fill Maximum Way : Put small containers into the freezer for about 30 minutes to allow more liquid to flow in</p> <p>Ease of Use and Universal : You just need to turn the large tank upside down and thread the brass connector anticlockwise. Fit for P.O.L. tank valve and new-style QCC-1 fitting</p> <p>Security Promised : Built-in overflow preventer shuts off the gas when proper pressure is achieved to ensure your safety</p>