• Harwil short probe flow switch replacement part
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Harwil

Harwil Flow Switch (Probe Only) Short

Harwil Flow Switch (Probe Only) Short

£90.99 GBP
£129.99 GBP £90.99 GBP
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Restore accurate water-flow detection with this genuine Harwil Flow Switch (Probe Only) Short, commonly fitted to older Sundance and Jacuzzi hot tubs with a white PVC tee. This direct-fit part protects your heater from running dry by shutting it down if flow drops.

  • Genuine Harwil flow switch probe
  • 1/2 inch MPT connection (outer thread approx. 3/4 inch)
  • Fits older Sundance and Jacuzzi hot tubs with white PVC tee
  • Protects your heater by detecting low or no water flow
  • Connection: 1/2 inch MPT
  • Length: 80mm
  • Plastic arm length: 35mm
  • Outer thread diameter: 20mm
  • Compatibility: White PVC tee only (not the clear plastic tee)

Correct installation direction matters — the arrow must point in the direction of flow and the thread must be wound all the way in for reliable protection.

🔒 Covered by The Warm Living's 3-Year Warranty, with fitting support from our team.

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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