Flow Switches

In this section you will find our range of flow switches for your hot tub or spa, from brands such as HydroAir and Harwil.

Need help? Ask us a question

In this section you will find our range of flow switches for your hot tub or spa, from brands such as HydroAir and Harwil.

Need help? Ask us a question

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Spares Available
Spares Available
  • Certikin Flow Switch
  • 25 AMP
  • White
  • PVC Plastic
Available for Pre Order Available for Pre Order
Available for Pre Order Estimated Dispatch 99 Days
£142.99
Saving: £47.09
  • Gecko Pressure/Flow Switch
  • Cable Only
  • 180CM Length
  • Model: 9920-400124
Out of stock Out of Stock
Email me when back in stock
£19.49
Saving: £2.04
  • Harwil Flow Switch
  • 3/4" Rib Barb
In stock 3 in stock
In stock Same day dispatch on orders before 14:30
£71.49
Saving: £27.15
  • Harwil Flow Switch
  • 3/4" Socket
  • Standard Immersion
In stock 7 in stock
In stock Same day dispatch on orders before 14:30
£62.99
Saving: £24.45
  • Harwil Flow Switch
  • Drain Down Tee
  • 3/4"x 3/8" Barbed
In stock 11 in stock
In stock Same day dispatch on orders before 14:30
£60.49
Saving: £23.37
  • Harwil Flow Switch
  • Long Reed
  • 0.50" NPT
Out of stock Out of Stock
Email me when back in stock
£71.99
Saving: £27.93
  • HydroAir Compression Nut
  • Suitable for Thermonsensor
  • Fits Thermo Sensor 20-0502
  • Use with Reducing Tees with 1/2" Tee
Available for Pre Order Special Order Item
Alert Lead time confirmed upon order
£2.49
 
  • O Ring
  • 13mm O/D
  • 2mm Thickness
  • Suitable for Spa-Quip Optical Water Sensor
In stock 10 in stock
In stock Same day dispatch on orders before 14:30
£0.99
 
  • Spa-Quip / Davey Sensor
  • Detects Water through Heater
  • Suitable for Spa-Quip / Davey Packs
In stock 11 in stock
In stock Same day dispatch on orders before 14:30
£27.49
Saving: £8.68