Steam Safety Relief Valve, Body Material Bronze, Inlet Type MNPT, Outlet Type FNPT, Inlet Size 3/4 in, Outlet Size 3/4 in, Factory Set Pressure 15 psi, Steam Capacity (Lb./Hr.) 375 lb/hr, Disc Material Non-Stick PTFE, Overall Height 2 3/4 in, Application Steam Boiler, Overall Length 2 1/8 in, Seat Material Bronze, Spring Material Stainless Steel, Temp. Range 250 Degrees F, Test Lever Yes, Compliance ASME, NB WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. -