Hayward Thermostat with Knob for Hayward Pool Heaters | HAXTST1930 UHDSR70 The diffuser channels water flow

The diffuser channels water flow from the impeller into the pump's volute

Refractory Insulation

With 209 pleats of 3 oz

This board mounts directly to the main PCB inside the AquaRite power center

Hayward Thermostat with Knob for Hayward Pool Heaters | HAXTST1930 UHDSR70 The diffuser channels water flowThe Hayward Thermostat with Knob (HAXTST1930) is the OEM replacement thermostat assembly for Hayward pool heaters, providing direct temperature control at the unit. IMPORTANT: PROFESSIONAL SERVICE REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without proper certification. What It Does The thermostat assembly regulates