Jandy Pro Series Pressure Switch | R0457001 Electric Grills Choosing genuine Cal Spas components

Choosing genuine Cal Spas components helps technicians maintain system compatibility

This kit combines a variable-speed blower and thermostatic control to modulate air flow according to temperature

Booster pump body housing

304 Stainless Steel

Brand & Line: Custom Molded Products (CMP)

Jandy Pro Series Pressure Switch | R0457001 Electric Grills Choosing genuine Cal Spas componentsWhat This Part Is Used For The Jandy R0457001 pressure switch is a heater safety component that verifies adequate water flow before allowing the heater to operate. It is used in compatible Jandy Pro Series heaters as part of the safety interlock chain. Why This Part Matters If the pressure switch is out of adjustment or failing, the heater may short cycle, refuse to fire, or shut down unexpectedly. A bypassed or incorrect switch can allow heating