The Flame King 1 lb (16.4oz) refillable propane cylinder fits all appliances that today's non-refillable tanks work with. This propane bottle is legally & lawfully refillable & transportable - just like your BBQ tank is. Our unique & patented valve design is not available from any other manufacturer. These refillable propane cylinders are perfect for practically every Mr. Heater, Weber, Coleman & similar outdoor-type applications that would fit a disposable tank. Spend your money wisely & buy the last 1 lb propane cylinder you will ever need! Tossing a single-use disposable tank is just a silly waste of resources & can be a potentially huge problem in the waste stream! Join the eco-revolution! Please note: these cylinders fill fastest & safest with our commercial Flame King refill adapter - not included but available with our refill kit! High-grade steel construction - x-ray & Hydrostatic tested - powder coating for long-lasting exterior protection - dot & TC certified for 12 years (10 years in Canada) - UL1769 listed.