The Flame King 1 lb (16.4oz) refillable propane cylinder and refill kit with its CGA600 connection, fits all appliances that todays non refillable tanks work with. This propane bottle is the only legally and lawfully refillable and transportable option, as well as DOT compliant. These refillable propane cylinders are perfect for practically every Mr. Heater, Weber, Coleman, and similar outdoor type application that would fit a disposable tank. Our commercial refill adapter fits on any standard 20 LB propane tank. Spend your money wisely and buy the last 1 lb propane cylinder you will ever need. Tossing a single use disposable tank is just a silly waste of resources and can be a potentially huge problem in the waste stream. Join the eco revolution. Please note, these cylinders fill fastest and safest with our commercial Flame King refill adapter included with this kit. High-grade steel construction x ray and Hydrostatic tested powder coating for long lasting exterior protection.