• Harwil Flow Switch Genuine Hot Tub Replacement Part
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Harvia

Harwil Flow Switch – Genuine Hot Tub Replacement Part

Harwil Flow Switch – Genuine Hot Tub Replacement Part

£96.23 GBP
£137.47 GBP £96.23 GBP
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Restore accurate water-flow detection with this genuine Harwil Flow Switch, featuring a 3/4" barb straight-through connection with a small white PCB plug. Commonly found in systems fitted with a Laing heater and Laing circulation pump.

  • Genuine Harwil part — reliable low-flow detection
  • 3/4" barb straight-through connection for easy plumbing fit
  • Small white plug connects directly to the PCB
  • Durable construction built for long service life
  • Brand: Harwil
  • Product Type: Flow Switch
  • Connection: 3/4" barb, straight through
  • Length: 125mm
  • Height: 65mm
  • Artesian
  • Dimension One
  • Sundance
  • LA Spas
  • Systems with a Laing heater and Laing circulation pump
  • Check all other possible causes of low-flow faults first — these switches are usually quite durable
  • 1 x Harwil Flow Switch
  • Quality-checked genuine part
  • Fast dispatch, secure packaging
  • Friendly support if you need fitting help

Frequently Asked Questions

How is my sauna or hot tub delivered?

We offer kerbside delivery across the UK and selected European countries. Our team will contact you to arrange a suitable delivery window. Lead times vary by product — typically 2–6 weeks. Please ensure suitable access for large items.

Do I need a professional to install my sauna pod or hot tub?

Most of our sauna pods and hot tubs are designed for straightforward self-installation with the included instructions. However, electrical connections must be carried out by a qualified electrician. We recommend consulting a professional for any groundwork or decking.

What warranty is included?

All products come with a minimum 2-year manufacturer's warranty covering structural defects and components. Extended warranty options are available — contact us for details.

Can I use my hot tub or sauna year-round in the UK?

Yes. Our products are designed for year-round outdoor use in the UK climate. Thermowood and spruce models are treated for weather resistance, and our hot tubs maintain temperature efficiently even in winter.

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