Waterflow Detector TTAP, System Sensor, 1" thru 1 1/2", WFDT, WFDTN

System Sensor Waterflow Switches are compatible with schedule 7 through
40 steel pipe. Can be mounted in a vertical or horizontal position. The sealed
retard mechanism is immune to dust and other contaminants. Visual switch
activation for indoor and outdoor use. Switch assembly and delay mechanism assembly are field replaceable. UL, ULC Listed and FM Approved.

Manufacturer Part Number:  WFDTN