Description: The ECH50 is an adjustable thermostat that makes monitoring and adjusting the water temperature of your pressure washer quick and easy. This is a genuine Hydro Tek OEM replacement part. The temperature gauge features a durable black plastic housing and bright white interface with clearly marked intervals in black and red. Also included in the kit is a stainless steel capillary copper immersion bulb to help provide accurate temperature readings and regulate water temperature to the exact setting you need, when you need it. Maximum PSI: 4000. Temperature Range: 86-250°F. Maximum Voltage: 380V/16A.