Description
Safeguard your pool heater with the Swimables Pressure Switch SW-43-737, a critical safety component built for Raypak Low Nox heater models. This switch continuously tracks the water pressure flowing through the heater and triggers an automatic shutdown whenever pressure readings move outside the safe operating window. That automatic cutoff protects both the heat exchanger from damage and swimmers from hazardous conditions. Fabricated from heavy-duty materials chosen for their heat and moisture tolerance, the SW-43-737 delivers reliable sensing performance season after season. When your existing pressure switch begins to malfunction or fail, replacing it promptly with this unit restores the protective safeguard your heater was designed to have.









