Description
Reliable 1 inch MPT Flow Switch for Pools, Spas and Equipment
The Harwil HRQ8DSA10566 is a compact flow switch engineered to monitor water flow in spa, hot tub and light commercial systems. With a 1 inch male pipe thread (MPT) connection and a 15 amp switching capacity, it installs easily into existing lines and handles demanding pump circuits. Constructed from durable, chemical-resistant materials, this Harwil unit is designed for dependable operation in chlorinated and treated water environments. Note: this listing is for the flow switch without a plumbing tee.
Key Features
1 inch MPT connection for straightforward integration into standard plumbing runs
15 amp electrical rating suitable for many spa, hot tub and light commercial applications
Durable, chemical-resistant construction for longevity in treated water systems
Commonly cited activation point of about 19 GPM when used with 1-1/2 inch plumbing, as reported by multiple product listings
Direct replacement part: Harwil model HRQ8DSA10566; sold without tee for flexible installation
Why Clients Choose This Flow Switch
Technicians and pool professionals choose the HRQ8DSA10566 for its balance of reliability and simplicity. The 1 inch MPT fitting and 15 amp capacity make it a versatile choice for retrofits and repairs, while the robust materials resist corrosion and chemical exposure common in spa environments. Because it is a focused, no-frills flow control device supplied without a tee, it offers installers the flexibility to pair it with the plumbing configuration they prefer. Always verify plumbing size and system requirements to ensure compatibility before ordering.
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