[Brass material]: Heavy-duty solid brass construction ,It works with a POL connection and 5~100lb propane tanks, also fits and old-style tanks. [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. [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. [Convenient installation]: Standard POL connector is suitable for a variety of propane tanks, and it can be installed quickly with sealing tape without leakage. [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 Suitable for 5-100lb gas tanks in North America Capacity: 80000-150000BTU/hour Working temperature: -10 Celsius-+ 55 Celsius Import: 25-250PSIG Export: 2.5PSIG-20PSIG Inlet interface: type 1 Colour:Black + Gold Material:brass Package Contents: 4 * Propane Tank Adapter Note:Random color of raw material(specified colors are not accepted) 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.