Thoughtful delivery service

Easy 30 day returns

Certified Reviews

Description

Harwil HRQ12D Flow Switch 1/2" Mpt Long Stem Pilot Duty SPNOHarwil 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

and compatible series

and safety covers

🛠️ Installation & Replacement: Disconnect power to the spa before servicing

and other particles out of your pool system

add the recommended amount of Celatom DEPOWDER through the skimmer

💡 Why Choose Genuine Pentair Unions

🔧 OEM Replacement Part – Genuine Pentair part for precise fit and reliable performance

Rinse thoroughly with a hose until water runs clear

Compatible with: Pentair Challenger High Flow and High Pressure pool pumps (models 343233

Remove the old cartridge and insert the Unicel C-5315 in its place

and Ruud heaters using pilot ignition systems

ensuring optimal performance of salt chlorine generators and overall water balance