Unisex For All 1 Lb Gas Tank Cylinder Sealed Protection, This Solid Brass Refill ?Suitable applications?Cap 14 and 16 oz propane bottles, and unused connections on a tank tree. Ideal for barbecues, camping stoves, propane heaters, and home applications. ?How to use?Designed with easy-grip knurling, so you can tighten or remove with fingers. No pliers needed. Comes with a soft rubber washer inside, similar to a garden hose washer. ?High-Quality Material?Solid brass with rubber gaskets, good fit and finish, these covers will minimize the rust and leakage of the propane tank ?Perfect Size?The solid brass cap has an inner diameter of approx. 2.4 cm/ 0.94 inch, height of 1.5 cm/ 0.6 inch. Screw directly on 1 lb propane bottles or cylinders to protect your things from dirt and reduce waste. ?Leak-Proof? The gas cap is designed with a rubber seal that helps prevent any potential valve leaks during storage. Keep 1 LB propane bottles sealed completely in case of any leaks. Perfect for camping, RV use, or home applications.