Harwil Flow Switch

Flow switch - Manufactured by Harwil - Connection: 3/4 inch barb straight through connection. Connects to PCB with a small white plug. Length: 125mm - Height: 65mm
This flow switch is commonly found Hot Tubs such as Aresian, Dimension 1 Hot Tubs, Sundance, LA Spas and many more. In most cases you will find it in a system that has a Laing heater and Laing circulation pump. Make sure you have checked all other possibilities for low flow faults before purchasing this item as they are usually quite durable.