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2-2/5" ID x 2-3/4" OD O-Ring UOR-56WUA500 - Bubbles Supply

2-2/5" ID x 2-3/4" OD O-Ring UOR-56WUA500

Part #: UOR-56WUA500

$2.70
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About this seal/gasket

This 2-2/5" ID x 2-3/4" OD O-Ring (UOR-56WUA500) is an LX OEM union seal designed for spa plumbing connections. This precision-molded rubber gasket ensures watertight seals between union fittings in your spa's circulation system, preventing costly leaks and maintaining optimal water flow.

At Bubbles Supply, we stock authentic LX replacement parts with exact fit guaranteed for reliable performance. Every O-ring ships same-day and includes our comprehensive 1-year warranty for complete peace of mind. The 2-2/5" inner diameter and 2-3/4" outer diameter specifications ensure proper compression and sealing when installed correctly. Always inspect union threads and surfaces for damage before installation, and apply a thin layer of silicone lubricant to ensure smooth assembly and optimal seal performance.

Exact part number

UOR-56WUA500

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Also known as / Replaces

This part replaces or is interchangeable with:

  • LX union o-ring
  • pump union seal
  • union face seal
  • union gasket

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

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • Water dripping or weeping at union connection
  • Slow leak at pump inlet or outlet union
  • Union fitting won't hold pressure after tightening
  • Visible water trail along plumbing union seam
  • Air entrainment at suction-side union causing loss of prime

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

Before you buy — quick checklist

  • Measure your existing o-ring ID and OD before ordering — 2-2/5" ID x 2-3/4" OD must match exactly
  • Inspect union faces and threads for cracks or deformation — a new o-ring won't seal against a damaged union seat
  • Confirm this is an LX-branded union assembly on your spa
  • Check whether the leak is at the union face seal or the union nut threads — different failure points require different fixes
  • Have food-grade or plumbing-grade silicone lubricant on hand before starting — never use petroleum-based grease on rubber o-rings

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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