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Heater Union Tailpiece 0050106015-SH - Bubbles Supply

Heater Union Tailpiece 0050106015-SH

Part #: 0050106015-SH

$4.68
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this union/fitting

This Magic Plastics heater union tailpiece (0050106015-SH) connects your spa heater assembly to the plumbing system with reliable 1-1/2" MBT x 1-1/2"S threading. Designed as a direct OEM replacement part, this short-configuration tailpiece fits Magic Plastics heater systems and resolves common connection issues that cause heating problems or water leaks at the heater union.

Engineered for durability and precision fit, this genuine Magic Plastics component ensures your spa heating system operates safely and efficiently. We guarantee exact fitment for your heater assembly, ship same-day from our Canadian warehouse, and back every part with a full 1-year warranty. When installing, hand-tighten the union connection first, then use a strap wrench to achieve final seal without over-torquing the plastic threads.

Exact part number

0050106015-SH

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Also known as / Replaces

This part replaces or is interchangeable with:

  • heater tailpiece
  • heater union fitting
  • MBT heater fitting
  • short heater union
  • union tail piece

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

Technical specifications

Union size
1-1/2 inch

Plumbing notes

  • Union size: 1-1/2 inch

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 union connection
  • Heater not reaching temperature due to flow bypass at union
  • Cracked or split tailpiece fitting
  • Stripped or cross-threaded union threads preventing proper seal
  • Heater assembly disconnecting from plumbing

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

Before you buy — quick checklist

  • Confirm your existing tailpiece is the short (S) configuration — not the long version
  • Verify your heater union uses 1-1/2" MBT x 1-1/2" slip (socket) threading
  • Inspect the mating union nut and O-ring — replace O-ring if worn to ensure a leak-free seal
  • Confirm your heater is a Magic Plastics assembly — fitment is specific to their union system
  • Check that your plumbing pipe is 1-1/2" to match the slip socket end

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

Install difficulty: Easy — DIY-friendlyTypically 15–30 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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