Q12DS Flow Switch

This is 'Q12DS flow switch' Two versions shown: LEFT is LONG Harwil Brand version, typically in older installations and direct wired through cap. New style is wired at tip, and compression fitting included to seal wiring. 120Volt, 2 Amp rating, switches on at 10 GPM, and off at 2 GPM. ABS plastic body with stainless spring arm. 1/2 inch npt base, with flow direction arrows molded into top. RIGHT is SHORT Allied Innovations Brand version more common in newer spas like Jacuzzi, Sundance, D1 and numerous others. Clear body allows visual inspection. 1/2 inch npt threads with flow direction arrows posted on body and switch top. Low voltage wire leads may need to be adapted/spliced to your wires. Choose SHORT or LONG for your application. Install with teflon tape and note flow direction.