Easy Filling: The 90-degree elbow design makes it easier for gas to flow to the small cylinders. Simply attach to your large tank and your 16oz tanks for refilling in 1 minute. Upgraded Design: Featured with a propane ON-Off control valve, prevents gas leaks when connecting gas cylinders. You can easily control the refilling process with safe. High Quality: Made of solid brass, rust-free and very durable for long time use. Leakage-free valve to assure your safety. Quick Monitoring: Quickly check the remaining gas of your large tank to avoid the inconvenience caused by insufficient gas during the filling process. Application: QCC1 propane refill elbow Adapter is used for filling small propane tanks from large tanks. Perfect for BBQ, camping party, heating needs and outdoor cookout. size: 14cm Material: brass colour: black+brass Package Contents: 1 x Propane Refill Adapter Only the above package content, other products are not included. Note: Light 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.