DUAL-STAGE DESIGN maintains constant gas pressure under changing demands and conditions; 1st and 2nd stages ensure a smoother, more consistent flow of propane gas to all RV appliances HEAVY DUTY ALUMINUM and SOLID BRASS material ensures the connections with the tank are secure and leak-free SAFE and SECURE CONNECTIONS: POL Inlet tank connection and 3/8"-18NPT outlet connection to the main RV gas line OUTLET PRESSURE: 11-inch WATER COLUMN pressure and a BTU/HR capacity of 160,000; with vent hole at the top APPLICATIONS: Works great for larger RVs, Food Trucks, or other large vehicles with appliances with high BTU outputs