t & p valve 3/4â male npt inlet x female npt outlet with 2 1/2âlong shank, designed to protect water heaters from overheating and over-pressurization, t & p is integral to safe operation of the water heater, fits directly into water heater, temperature relief 210 f (99 c) factory setting pressure 150 psi test lever standard, drain line must be fitted to t & p valve, read instruction manual, csa and asme listed, certified ansi z21.22, 1 year warranty