Rescue your Sunday afternoon cookout with the Mr. Heater 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. 1" - 20 female throwaway cylinder thread x female P.O.L. and acme thread.• For use with propane gas• 1" - 20 Female Throwaway Cylinder Thread x Female P.O.L. and Acme Thread• Most commonly used with 1-lb. bottles to grills or distribution posts to grills• Brass nipple to open safety valve in male throwaway cylinders• Rubber gasket for sealing• Solid brass construction Also connects grills to a distribution post Solid brass construction with rubber gasket for sealing 1"" - 20 female throwaway cylinder thread x female P.O.L. & acme thread | Mr. Heater Steak Saver Propane Adapter