Small Temperature and Pressure Relief Valve for Water Heaters SP12574 by Rheem, three quarter inch NPT Inlet and Outlet, 210 F Max Temperature, 150 PSI Maximum Pressure, Easy Install Replacement Part for Rheem Tanks

Compact Water Heater TPR Valve, 3/4 in NPT, 1-Pack
✔️ Inlet/outlet 3/4 in NPT, 210°F max, 150 psi max, 7.25 in long

This safety valve is a small, critical device installed on standard residential water heaters to prevent overheating and overpressure by releasing hot water or steam when a preset threshold is reached. It serves as a direct replacement option for common 3/4 in NPT connections and helps protect the tank from damage.

✅ Inlet: 3/4 in NPT; Outlet: 3/4 in NPT
✅ Max temperature: 210°F (99°C)
✅ Max pressure: 150 psi (1034 kPa)
✅ Overall length: 7-1/4 in (184 mm); body length 3-1/4 in (83 mm); sensor length 4 in (102 mm)
✅ Kit compatibility: 45W613

💡 What is a temperature and pressure relief valve used for in home water heaters?

It protects the hot water system by releasing excess pressure and heat to prevent tank damage.

- temperature and pressure relief valve prevents overheating and overpressure in residential water heaters - uses standard 3/4 in NPT connections for easy replacement - commonly used with replacement kits such as 45W613 for maintenance