Gas Can Refill Adapter with Visible Windows, Fuel Transfer Device for Hiking, Portable Outdoor Inflation Valve with Carrying Case (ADAPTER-815)

Made of aluminum and copper, sturdy and durable. Transfer fuel between canisters, recycle empty canisters, transfer liquefied gas from one valve cylinder to another valve cylinder, convenient and reusable to fill gas tanks. There are two visual windows to observe the flow of gas in liquefied state. Compact size for convenient carrying and storage. Realize the bridge between the flat gas tank and the flat gas tank so that the unused residual gas from the gas tank is collected in a single tank. Gas saver plus with pressure release button and adjustable control valve. Suitable for camping, hiking, picnic, etc.