[How to Use]: Connect the QCC1 end to a 5~40lb propane bottle and the other end to a 1lb propane tank. Invert the larger tank for smoother flow, regulate with the control valve, and monitor completion through sound and weight. Enhance the experience by pre-freezing the small gas cylinder before filling. [Premium Brass Construction]Crafted from solid brass, our 1lb propane tank refill adapter boasts outstanding corrosion resistance and sealing capabilities. Experience the reliability of a durable product that stands the test of time, providing a secure and long-lasting solution for your propane refilling needs. [Effortless Monitoring]: Our propane bottle refill adapter comes equipped with a pressure gauge, serving as a propane tank monitor during refilling. The pressure gauge indicates the large propane tank pressure with the valve open and the 1lb propane tank pressure with the valve closed, ensuring a secure and worry-free refilling process. [Seamless Compatibility]Our propane tank adapter is designed to work seamlessly with heaters, camping stoves, portable grills, and tabletop grills. Experience versatility in your outdoor activities with a hassle-free propane refill solution. [Cost-Effective]Save on gas refills with our propane tank adapter's ability to refill 1 lb. propane bottles multiple times Colour:copper Material:Metal+Plastic Package Contents: 1 x Propane Refill Adapter 1 x cover 1 x raw tape Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.