[Brass material]: Heavy-duty 100% solid brass construction ,It works with a POL connection and 5~100lb propane tanks, also fits new and old-style tanks. [Convenient installation]: Standard POL connector is suitable for a variety of propane tanks, and it can be installed quickly with sealing tape without leakage. [Safe and reliable]: Checks for leaks on propane appliances, ensuring your safety and peace of mind, It gives you provide an accurate idea of how much propane remains. [Upgrade gauge]: The instrument panel has 3 color ring readings, and the propane content is clear at a glance by looking at the direction of the pointer at different temperatures. [Wide range of scenes]: Great for using a gas grill, heater, smoker, camp stove, RV's, tabletop grill, fire pit table, turkey fryer, and more propane appliances, Manufacturer: Mcnhbdgg