Polaris 9-100-9002 replacement pressure relief valve for 180, 280, and 380 mmHg. Genuine replacement pressure relief valve for cleaning accessories.

Replacement pressure relief valve for Polaris 180, 280, and 380 pressure washers, part number 9-100-9002. This valve regulates the system's operating pressure and automatically releases some of the water flow to protect the washer in case of overpressure. Its operation is identical to that of the original valve.