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Flow Switch Kit 48-0223G-HQ-K - Bubbles Supply
Exact Fit

Flow Switch Kit 48-0223G-HQ-K

Part #: 48-0223G-HQ-K

$87.99
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About this flow switch

The HydroQuip Flow Switch Kit 48-0223G-HQ-K is an OEM replacement sensor designed for spas equipped with HydroQuip control systems. This genuine flow switch features a 3/4" barb connection and includes a Molex connector specifically configured for Watkins spa applications. The kit detects water flow through your spa's plumbing system, sending critical feedback to the control board to ensure proper heater operation and prevent dry-fire conditions that could damage your spa's heating elements.

As an exact OEM replacement part, this flow switch kit guarantees precise fitment and reliable performance that matches your spa's original specifications. Bubbles Supply stocks this sensor for same-day shipping, backed by our comprehensive 1-year warranty for complete peace of mind. The Molex barrel connector ensures secure electrical connections that resist corrosion in the spa environment. Professional installation is recommended to ensure proper positioning within your spa's plumbing system and correct electrical connections to the control board.

Exact part number

48-0223G-HQ-K

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Also known as / Replaces

This part replaces or is interchangeable with:

  • dry-fire protection switch
  • HydroQuip flow switch
  • spa flow sensor
  • water flow detector

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

Fits these brands and models

Compatible brands

HydroQuipWatkins
Not sure if it fits your spa? Send us a photo — we'll confirm before you order

Technical specifications

Port type
3/4" barb

Plumbing notes

  • Port type: 3/4" barb

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:

  • HH error code on control panel
  • OH error code on control panel
  • ICE error code on control panel
  • Heater not firing despite pump running
  • Spa displaying no-flow fault
  • Control board shutting down heater intermittently

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

Before you buy — quick checklist

  • Confirm your spa runs a HydroQuip control system — check the control box label
  • Verify your existing flow switch uses a 3/4" barb fitting
  • Confirm the Molex connector on your control board matches the Watkins-style configuration
  • Inspect the flow switch tee or inline fitting in your plumbing — the barb must be accessible
  • Check whether your fault code is truly flow-related before replacing (a failed pump or closed valve can mimic a bad flow switch)

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

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

What's in the box

  • Flow switch assembly
  • Molex connector (pre-wired)
  • 3/4" barb fitting

If your order is missing any items listed above, contact hello@bubblessupply.com within 48 hours of delivery.

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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