The Fuel Keg Refill Kit from Mr. HeaterA(R) helps you save money and reduce waste by quickly and easily filling your refillable 1-lb. Mr. Heater Fuel Keg (sold separately). Used to fill the 1-lb. refillable Fuel Keg Propane Tank (sold separately, see item 743176) Helps save money and reduce waste User-friendly design No tools required Order today!