• Clean-out Thermal Relief Valve (TRV) is a high-quality replacement part for pressure washer pumps; with easy installation. • The TRV prevents heat damage to water seals and other internal components by releasing hot water from the pump and allowing cold water to enter through the pump inlet. • Compatible with most pressure washers that have 1/4 inch NPT. • Comes with thread sealant already installed; precision calibrated; 1/4 inch NPT.
