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providing optimal performance and extended filter cycles for residential pools and spas
Verify fit by matching the part number R0589100 to your original housing or parts diagram before ordering
It helps manage motor operation and is intended for use as a direct service replacement when the original board fails or becomes unresponsive
Rinse with fresh water if residue forms and allow it to dry before reinstalling
Harwil HRQ12D Flow Switch 1/2" Mpt Long Stem Pilot Duty SPNO Washer providing optimal performance and extendedHarwil HRQ12D Flow Switch 1 2" MPT Long Stem, Pilot Duty SPNO Reliable Flow Detection Ensures accurate water flow monitoring, protecting pumps, heaters, and critical hydronic equipment in pools, spas, water heaters, and boilers. 1 2" MPT Long Stem Design Male pipe thread for direct inline installation; extended stem for deeper pipe runs and retrofit needs. Durable & Versatile Built for continuous operation in wet environments. Suitable for commercial
