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Spa Pressure Switches normally operate by water pressure on a bellows that pushes up a little rod that presses on the spa switch activator. The spa pressure switch or spa flow switch is a safety device which shuts off the heater circuit if water flow is interrupted. Closed during normal spa operation, it snaps open if spa pump fails or an air pocket forms. This prevents the heater from meltdown if there is an equipment failure. We can supply you with all your spa pressure switch needs at the lowest prices. If you can't find what you're looking for, feel free to give us a call at 800.544.3730.
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