1 Convenient Shutoff ValveThis propane quick connect adapter allows compatible easy control of airflow by simply opening or closing the valve of the individual quick connect device, saving time and eliminating the need to shut off the entire RV propane source. 2 Quick and Easy ConnectionWith this propane quick connect fitting, you can effortlessly add a convenient connection and disconnection method, allowing you to use propane supply on RVs, campers, or trailers equipped with built in quick connect propane connections. 3 Reliable MaterialsThe propane fittings are made of solid brass, ensuring weather resistance, high temperature resistance, corrosion resistance, and durability, making them less prone to breakage. 4 Secure ConnectionThe precise threading ensures a secure and tight connection to your propane tank and hose, providing a safe and leakage proof connection. You can use sealing tape (not included) and wrap it around the thread during connection to better ensure that gas does not leakage. 5 Versatile UsageSuitable compatible all low pressure propane systems such as camping stove, portable grills, tabletop grills, gas grills, and heaters, these propane quick connect adapters are essential accessories compatible camping, RV travel, BBQ, picnics, and other outdoor activities.