Watts® LF40XL-7-150 Temperature and Pressure Relief Valve, Automatic, Re-Seating, 1 Inch, MNPT x FNPT, 150 psi, Media: Hot Water, Bronze Body, 7 Inch Thermostat Length, 210 deg F, 2-3/4 Inch W
Features:
• Lead Free cast body
• Non-mechanical seat-to-disc alignment
• Tamper-resistant bonnet screws
• Series 3⁄4" LF40 and LF140 feature a unique thermostat with a special
thermo-bonded coating
• Series 1" LF140 are furnished with stainless steel thermostat tube
• Series LFN240 and LF340 are hot furnished with stainless steel thermostat tube