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2.5" Heater Union Tailpiece Kit 417-5980-KIT - Bubbles Supply

2.5" Heater Union Tailpiece Kit 417-5980-KIT

Part #: 417-5980-KIT

$31.71
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Also replaces

417-5980
1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this union/fitting

This 2.5" heater union tailpiece kit from HydroQuip provides essential plumbing connections for spa heater installations and repairs. Designed for HydroQuip heating systems, this OEM kit includes a 2.5" socket tailpiece and 2.5" x 2" reducer, delivering the exact components needed to properly connect your heater assembly to the spa's plumbing system.

As an authentic HydroQuip replacement part, this tailpiece kit ensures precise fitment and reliable performance in your spa's heating circuit. Each kit ships same-day from our Canadian warehouse and comes backed by our 1-year warranty for complete peace of mind. The included reducer allows for flexible plumbing configurations while maintaining optimal water flow through your heating system. Always verify your existing heater union specifications and turn off power to the spa before beginning any heater plumbing work.

Exact part number

417-5980-KIT

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Also known as / Replaces

This part replaces or is interchangeable with:

  • 2.5 inch union tailpiece
  • 417-5980
  • heater plumbing kit
  • heater union tailpiece
  • spa heater union fitting kit
  • union tail piece kit

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

Technical specifications

Union size
2.5 inch socket tailpiece with 2.5 inch x 2 inch reducer

Plumbing notes

  • Union size: 2.5 inch socket tailpiece with 2.5 inch x 2 inch reducer

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:

  • Water leaking at heater inlet or outlet union connection
  • Cracked or brittle union tailpiece causing drip or weep at heater
  • Unable to disconnect heater assembly for service due to damaged union fitting
  • Heater plumbing replacement after freeze damage
  • New heater installation requiring union plumbing connections

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

Before you buy — quick checklist

  • Confirm your existing heater union is 2.5 inch — measure the pipe O.D. or check your heater manifold specs before ordering
  • Verify whether you need the reducer included in this kit — if your spa plumbing is already 2.5 inch throughout, confirm the reducer is compatible with your configuration
  • Check that your heater is a HydroQuip unit — this is an OEM part and fitment is confirmed for HydroQuip heating systems
  • Inspect both the inlet and outlet union connections — you may need two kits if both sides are damaged
  • Turn off all power to the spa at the breaker before beginning any plumbing work involving the heater circuit

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

  • 2.5 inch socket tailpiece
  • 2.5 inch x 2 inch reducer

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

Warranty

1 year 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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