Watts 40XL-4-1 Temperature and Pressure Relief Valve

Temperature and Pressure Relief Valve; Type Automatic Reseating, Self-Closing, Lever; Inlet Size 1 Inch; Outlet Size 1 Inch; End Connection Male Threaded x Female Threaded; Body Material Bronze; Set Pressure Range 150 to 210 PSI; Temperature Rating 210 Deg F; Pressure Rating 75 to 150 PSI; Inclusions/Features Self-Closing, Extension Thermostat, Test Lever, Non-Mechanical Seat to Disc Alignment, Tamper Resistant Bonnet Screw; Application Commercial Water Heater; Applicable Standard ANSI Z21.22, ASME, CSA (Canada and US), ASSE, FM, NSF, UL, ULC, USC, NB, HV, FHA, MIL-V 136-12D, Type 1; Temperature Steam Rating 500000 BTU/Hour; Thermostat Length 4 Inch; Overall Dimension 2-3/4 Inch Width x 6-1/4 Inch Height