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Flow Switch Tee TEE6 - Bubbles Supply

Flow Switch Tee TEE6

Part #: TEE6

$22.28
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this flow switch

The Harwil Flow Switch Tee TEE6 is an OEM replacement sensor designed for Sundance spas and other compatible models requiring 3/4" MPT connections. This critical component monitors water flow through your spa's plumbing system, automatically shutting down the heater when flow drops below safe levels to prevent costly damage from overheating or dry-fire conditions.

Built to exact OEM specifications, this genuine Harwil flow switch tee ensures precise fit and reliable operation in your spa's circulation system. Bubbles Supply guarantees an exact fit for your application, ships same-day on orders placed before our cutoff, and backs every part with our comprehensive 1-year warranty. Professional installation recommended to ensure proper torque specifications and optimal sensor positioning within your spa's plumbing configuration.

Exact part number

TEE6

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • flow switch tee body
  • Harwil tee fitting
  • TEE6 tee

Looking for an older part number? Check our supersession lookup tool

Technical specifications

Port type
3/4" MPT

Plumbing notes

  • Port type: 3/4" MPT

Need help measuring? Email hello@bubblessupply.com with a photo of your existing plumbing.

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • Heater shuts off immediately after startup
  • Spa displaying HH, ICE, or OH error codes
  • Flow switch fault errors on control panel
  • Heater won't fire despite adequate water flow
  • Spa cycling on and off unexpectedly

Not sure if this is your problem? Try our diagnostic centre or .

Before you buy — quick checklist

  • Confirm your existing tee uses 3/4" MPT (male pipe thread) connections — measure or check current part markings
  • Verify your flow switch model is compatible with the TEE6 tee body before ordering
  • Inspect the existing tee for cracks, stripped threads, or chemical degradation — if threads are damaged, address plumbing before installing
  • Check whether the fault code is actually caused by the tee fitting vs. the flow switch paddle/sensor assembly itself
  • Confirm water is fully drained from the plumbing section before removal to avoid spills and sensor damage

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Install difficulty: Medium — Some experience neededTypically 30–60 minutes

Warranty

1 year manufacturer warranty against defects

Covers manufacturing defects. Does not cover improper installation, normal wear, or accidental damage.

Warranty claims: warranty@bubblessupply.com

Perfect Fit Guarantee

Ordered with our help and the part doesn't fit? Contact us before installation. We'll resolve it with an exchange, replacement recommendation, or return approval.

Learn about our Perfect Fit Guarantee →

Shipping

We ship across the US and Canada. US orders ship from our US warehouse to US customers; Canadian orders ship from our Canadian warehouse to Canadian customers — no cross-border shipping, no surprise duties. In-stock orders placed before 3pm CT ship same day. Standard shipping $9.95 flat rate. Free shipping on orders over $200. Express options available at checkout.

Returns

30-day hassle-free returns on unused parts in original packaging. Contact us before returning to receive your RMA number.

Frequently asked questions

Check the Compatibility section above to confirm fitment for your spa brand and model. If your model is not listed, use our fitment selector at /pages/find-my-part or ask our parts AI for a personalized recommendation.

In-stock orders placed before 3pm CT ship the same day. You will receive tracking information by email as soon as your order ships.

We accept returns within 30 days of delivery for unused items in original packaging. Email returns@bubblessupply.com with your order number to start a return. Installed electrical parts cannot be returned for safety reasons.

Yes, all new parts come with a 1-year warranty against manufacturing defects. Warranty does not cover damage from improper installation or normal wear and tear.

Customer reviews

AI Fitment Assistant

Tell us your spa model and we will confirm this part fits before you buy.

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