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3/4" ID x 1" OD Heater O-Ring 568-210 - Bubbles Supply

3/4" ID x 1" OD Heater O-Ring 568-210

Part #: 568-210

$0.27
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 3/4" ID x 1" OD heater O-ring (568-210) provides a critical seal for Brett Aqualine spa heater assemblies and sensor housings. Designed as an OEM replacement part, this precision-molded O-ring creates a watertight seal between heater components, preventing leaks that can damage electrical systems and reduce heating efficiency in your spa.

Built to exact OEM specifications, this O-ring delivers the exact fit guaranteed you need for reliable, long-lasting repairs. We ship same-day from our Canadian warehouse and back every part with our comprehensive 1-year warranty for complete peace of mind. Before installation, ensure your spa is powered off and drained, then clean all mating surfaces thoroughly to achieve optimal seal performance and prevent premature failure.

Exact part number

568-210

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Also known as / Replaces

This part replaces or is interchangeable with:

  • 210 o-ring
  • heater assembly o-ring
  • heater o-ring
  • sensor port 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 dripping or pooling at heater assembly
  • Wet heater manifold or sensor housing
  • Spa losing water with no visible crack in plumbing
  • Heater element corrosion from persistent moisture
  • Error codes triggered by water intrusion near sensors

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

Before you buy — quick checklist

  • Confirm your heater assembly uses a 3/4" ID x 1" OD o-ring — measure the old one before ordering
  • Verify the part number 568-210 appears on your existing heater documentation or the old o-ring itself
  • Inspect mating surfaces for scoring or corrosion before installation — a damaged seat will cause the new o-ring to fail
  • Have silicone-based o-ring lubricant on hand before starting the job

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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