Propane Refill Adapter Hose Converter Refilling Empty Butane Refuel Gas adaptor Gas Transfer From LPG Cylinder Refilling the outdoor camping gas cartridge. Save money on propane expenses. Simply turn the LPG tank upside down and the small gas cylinder upright for a hassle-free refilling process. * High pressure PU hose ensures safe, leak-free operation in all weather conditions. * Comes with fill and pressure relief valve.(Open the pressure relief switch and allow 7 seconds of pressure relief.Then open the fill switch.Gas movement will be successful.) * Easily connect your big LPG Cylinder to the small propane tank. * Great for camping, tailgating, heating needs or having an outdoor cookout. Specifications: Material: Rubber hose & solid brass Hose Length: 70cm / 27 Inch,I nner diameter:4mm O uter diameter:6mm Pressure Proof :3.1Mpa JAPAN/KOREA RUSSIA/UKRAINE US/CANADA _x000D_