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2-3/16" ID x 2-7/8" OD O-Ring 0301-229W - Bubbles Supply

2-3/16" ID x 2-7/8" OD O-Ring 0301-229W

Part #: 0301-229W

$5.35
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this seal/gasket

This Magic Plastics O-ring delivers reliable sealing for spa pumps, heaters, and plumbing connections requiring a 2-3/16" inner diameter seal. The precision-molded gasket measures 2-3/16" ID x 2-7/8" OD with 1/4" thickness, providing the exact specifications needed for proper component sealing in most residential spa systems.

Manufactured by Magic Plastics to OEM standards, this replacement O-ring ensures leak-free operation and extends equipment life. At Bubbles Supply, we guarantee an exact fit with same-day shipping on in-stock items, backed by our comprehensive 1-year warranty. Before installation, clean all sealing surfaces thoroughly and apply a thin layer of silicone lubricant to ensure proper seating and prevent premature wear.

Exact part number

0301-229W

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 0301-229W gasket
  • 2-3/16 ID o-ring
  • Magic Plastics O-ring
  • spa plumbing o-ring

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 leaking at pump housing or union connection
  • Slow drip from heater manifold fitting
  • Leaking spa plumbing joint after pressure cycle
  • Wet equipment bay with no obvious cracked pipe
  • Seal failure after winterization or prolonged dry storage

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

Before you buy — quick checklist

  • Measure your existing o-ring ID, OD, and cross-section thickness before ordering — confirm 2-3/16" ID x 2-7/8" OD x 1/4" cross-section
  • Inspect the mating groove for cracks, scoring, or debris that would cause the new o-ring to fail immediately
  • Do not substitute a close-but-not-exact size — even 1/16" off on the cross-section will result in a leak or blow-out under pressure
  • Have food-grade or spa-rated silicone lubricant on hand before starting — petroleum-based lubricants will degrade the o-ring
  • Drain and depressurize the system completely before disassembly

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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