Harwil Flow Switch - Drain Down Tee 3/4"x 3/8" Barbed

This flow switch, with its characteristic tee-mounted configuration is commonly found in Sundance and Jacuzzi spas, among others.

• Sundance Spas: 850/880 Series Maxxus, Optima, Cameo, Majesta, Altamar, Marin 06/1999-2015, 880 Aspen 2012-2015, 850/880 Capri 1 pump 2001-2015
• Jacuzzi: J-300 LCD Series Models, 2002+ (with box end connectors)

It comes with a 1-metre cable, with a 3-pin female plug.

The transparent tee has barbed connections for two 3/4" and one 3/8" pipes. The same flow switch is also available in a straight connector, also transparent.

A very common component on many spas with low flow heating systems.

Fits 3/4" pipe work and connects to PCB via JST connector. This flow switch also has the 3/8" tee which allows water to drain out if the spa is completely drained for winterising.

Very easy to replace yourself.