The Mr. Heater Fuel Keg is the ultimate solution for your portable propane needs. This refillable 1-lb. propane tank combines the benefits of saving money, conservation, and ease of use. By eliminating the need for disposable propane canisters, Fuel Keg significantly reduces propane expenses while minimizing waste. When combined with the Fuel Keg Refill Kit (item 761181 sold separately), you can effortlessly fill the tank with propane whenever needed. Product Features The ultimate solution for your portable propane needs Refillable 1-lb. propane tank reduces expenses and minimizes waste Effortless tool-free operation Fills in approximately 60 seconds Requires Fuel Keg Refill Kit for operation