Iglobalbuy Universal 1lb Propane Tank Refill Adapter Safe Tank Fill Attachment Brass Regulator Valve Accessory Fits All 1 lb Cylinder Tanks LP Gas Cylinder Canister Filler Coupler Works with all 20, 30, 40 or 50 pound cylinders. Female throwaway cylinder thread x Soft Nose P.O.L. For personal use only. Condition: 100% Brand New Tank Refill Adaptor;Solid brass construction. Works with all 20, 30, 40 or 50 pound cylinders.Refills 1 lb. bottles in 1 minute or less so quick. Great for Ice Fishermen, mountain men, Outdoormen, and all Campers and power outages .