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Auto-Test Flow Switch for Fire Sprinkler | Potter Electric
Flow switches - for fire protection, Potter
POTTER VSR-SG Water Flow Switch w/Retard and Glue-in Union | Senju
Auto-Test Flow Switch for Fire Sprinkler | Potter Electric
Potter 144450 VSR-C Sprinkler Saddle Type Flow Switch 2" Low Flow for
1144440 Potter VSR-S Sprinkler Threaded Flow Switch for 1" to 2" Pipe