Rescue your Sunday afternoon cookout with the Propane Steak Saver Adapter! When you run out of gas in your 20 lb. tank, simply screw this adapter into the propane operating line to operate your grill from a disposable 1 lb. propane cylinder. Can also be used to hook modern grills and other appliances to a distribution post. Female throwaway cylinder thread x Soft Nose P.O.L.