Harwil Q12DS Cal Spa Flow Switch (Q12DS/CAL SPA) pumpmotors Matching the correct 5 inch

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2 inch by 15 inch body and 5

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Harwil Q12DS Cal Spa Flow Switch (Q12DS/CAL SPA) pumpmotors Matching the correct 5 inchA flow switch helps confirm water movement in a compatible spa system so related equipment can operate under the correct conditions, and this Harwil Q12DS version is intended for Cal Spa applications using the Q12DS CAL SPA reference. Flow sensing is especially important in spa systems where heaters and controls depend on dependable circulation confirmation. This switch has practical value because it is matched to a specific application family,