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1-1/2" S x 1-1/2" FBT Union 52271000 - Bubbles Supply

1-1/2" S x 1-1/2" FBT Union 52271000

Part #: 52271000

$22.68
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 1-1/2" S x 1-1/2" FBT union (part #52271000) is an essential plumbing connection for Aqua-Flo by Gecko main pump systems in residential spas and hot tubs. Sold as a set of two unions, these OEM components create secure, leak-proof connections between your pump and the spa's plumbing system. The slip x female buttress thread configuration ensures proper water flow while allowing easy pump removal for maintenance or replacement.

At Bubbles Supply, we guarantee these Aqua-Flo unions are the exact fit for your pump system, backed by our comprehensive 1-year warranty. Every order ships the same day to minimize your spa downtime. These genuine Gecko unions feature durable construction designed to withstand constant water pressure and temperature fluctuations. Always verify your existing union size and thread type before installation to ensure proper fitment and prevent potential leaks.

Exact part number

52271000

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • buttress thread union
  • plumbing union
  • pump union
  • slip union
  • spa pump union

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 pump connection point
  • Leaking union nut or union body
  • Cracked or brittle union from age or UV exposure
  • Unable to disconnect pump for service due to failed union
  • Slow drip that worsens under pump pressure

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

Before you buy — quick checklist

  • Confirm your existing union is 1-1/2" slip x 1-1/2" female buttress thread — measure the pipe OD and count threads before ordering
  • Verify this is an Aqua-Flo by Gecko pump — union thread profiles are brand-specific and not universally interchangeable
  • Inspect the mating union on the pump itself — if the pump-side union tail is also damaged, you may need additional parts
  • Check whether you need one union or two — this listing sells as a set of two, which typically covers both the suction and discharge sides
  • Have the spa drained or the plumbing isolated before starting — you cannot swap a union with water under pressure

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

  • 1-1/2" S x 1-1/2" FBT union bodies (qty 2)
  • Union O-rings

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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