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Pump Union: Tailpiece 2" Slip 50103020 - Bubbles Supply

Pump Union: Tailpiece 2" Slip 50103020

Part #: 50103020

$3.52
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this union/fitting

The Magic Plastics 2" Slip Tailpiece Pump Union (Part #50103020) is an essential plumbing component that connects your spa pump to the main plumbing system. This OEM replacement part fits various spa models that require a 2-inch slip connection, ensuring proper water flow and system integrity. The slip-fit design allows for easy installation without the need for threading, making it a preferred choice for both professional technicians and DIY spa owners.

Built to Magic Plastics' exacting OEM standards, this tailpiece union delivers the exact fit you need for reliable, leak-free operation. At Bubbles Supply, we guarantee precise fitment and back every part with our comprehensive 1-year warranty. Plus, with same-day shipping on in-stock items, you'll have your spa running smoothly again in no time. Always verify your existing union's dimensions and connection type before installation to ensure proper compatibility with your spa's plumbing configuration.

Exact part number

50103020

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 2-inch slip tailpiece
  • pump plumbing union
  • pump union tailpiece
  • slip union
  • union body

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

Technical specifications

Union size
2 inch
Port type
Slip (no threads)

Plumbing notes

  • Union size: 2 inch
  • Port type: Slip (no threads)

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:

  • Active water leak at pump inlet or outlet union
  • Union body cracked or shattered from freeze damage
  • Stripped or cross-threaded union nut preventing seal
  • Persistent drip at pump connection despite O-ring replacement
  • Discolored or brittle union body indicating UV or chemical degradation

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

Before you buy — quick checklist

  • Confirm your existing tailpiece is 2-inch slip — not threaded or barbed
  • Measure the pipe OD that inserts into the tailpiece to verify true 2-inch slip fit
  • Inspect the mating union nut and O-ring — replace those if worn while you have the union apart
  • Check whether your spa plumbing is glued or unglued — a glued-in tailpiece requires cutting the line and may affect install complexity
  • Verify this is the tailpiece (pump-side body) and not the union nut or the flange half of the union assembly

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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