Adapter for filling propane LPG burner This valve is made of brass and stainless steel for safety, convenience and easy control. Thanks to the transparent and high-pressure plastic tubes, you can check the air flow directly. Compact size, convenient to carry, camping, barbecue, outdoor cooking, picnic and other necessities. Typically flat tanks are disposable, but inflatable valves make them reusable. How to use it: 1. You will need a filling valve, an empty flat tank, an LPG cylinder and an electronic scale. 2. Make sure that the flat tank connection valve is closed before refilling. 3. Connect the LPG cylinder connector to the cylinder and open the cylinder valve to check that no gas is leaking. 4. Insert or turn over the LPG cylinder and connect it to the shallow water. Put the connected flat container on the scale, open the gas cylinder button and you will see the gas flow in the line. 5. Close all valves after inflating. Specification: Tube Length: 600-650mm / 23.6-25.6in Converter: 27 * 43 * 43mm Package weight: 170g / 6.0oz Material: PU tube + copper tube Total length: approx. 70 cm Package Contents: 1 x Self-Locking Conversion Head 1 x flat gas filling valve Package content above only, other products are not included.