Feature 1Premium Material: The propane adapter is crafted from brass, ensuring durability and safety for leak-free operation. It offers excellent resistance to aging, corrosion, heat, and maintains airtightness and flexibility, providing peace of mind throughout the refueling process. 2Propane Gauge and ON/OFF Valve: The integrated propane tank pressure gauge allows for precise monitoring of gas levels without the need to shake the tank. With the ON/OFF valve, you can safely stop the refueling process at any time, prioritizing safety. 33 Feet Propane Refill Hose: Our adapter hose measures 36 inches (3 feet), providing added convenience and ease when connecting tanks without the need to move or carry them. 4Wide Applications: The propane refill adapter is designed for use with portable grills, camping stoves, tabletop grills, heaters, and more. It's ideal for camping, heating, and outdoor cooking. 5Package Contents: The propane refill adapter set includes: 1 x 3FT (36") propane refill adapter hose, 4 x propane bottle caps and 1 x roll of sealing tape.Item Name: 3FT Propane Refill Adapter Hose with Pressure GaugeMain Material: BrassHose Length: 3FT/36"/91cmUsage Instructions:Step 1: First, connect the QCC1 connector to the large cylinder. Open the gas for a few seconds, then connect the 1lb adapter to the small propane tank. Failure to follow this sequence may result in the device not working properly.Step 2: Open the valve and begin filling. Note: At this point, the pressure gauge displays the pressure of the large cylinder, not the small propane tank.Step 3: If you do not wish to continue filling, simply close the fill valve. Note: At this point, the pressure gauge displays the pressure of the small propane tank, not the large cylinder.Additional Note: When the valve is initially opened, the pressure gauge shows the pressure of the large cylinder. After filling is complete and the valve is closed, the pressure gauge will display the pressure of the small propane tank.Package List1 * Propane Refill Adapter Hose with ON-OFF Control Valve4 * Propane Bottle Caps1 * Sealing Tape