Attaches to propane gas tanks with 5/8” POL-type valve. G3/8”-19 LH, BSP male gas hose connector. Ideal for roofing burners, blowtorches, ring burners, boiling rings, commercial BBQs, gas space heaters and many other gas appliances with variable gas pressures. Operating pressure range 500 - 4000mbar. Max flow rate 8kg/h. Use with Silverline Gas Bottle Spanner (753123) or other 30mm AF spanner.