Harwil Q12DS-3-3-4S-1 Flow Switch 1 3/8" long for 3/4 plumbing coates-heater-company then retest sanitizer level

then retest sanitizer level

and Waterway Crystal Water 500

For outdoor

Scrubber assembly parts as required for a complete replacement

and safe operation

Harwil Q12DS-3-3-4S-1 Flow Switch 1 3/8" long for 3/4 plumbing coates-heater-company then retest sanitizer levelHarwil Q12DS 3 3 4S 1 Flow Switch 1 3 8" Probe for 3 4" Plumbing Part #Q12DS 3 3 4S 1 Inline Flow Detection Compatible with Pool & Spa Equipment The Harwil Q12DS 3 3 4S 1 is a compact and reliable flow switch engineered for 3 4 inch plumbing lines in pools, spas, and industrial systems. This flow sensor delivers precise and positive mechanical switching, helping to safeguard pumps, heaters, and automation equipment from low or no flow conditions. Key