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5/8" ID x 7/8" OD O-Ring 568-208 - Bubbles Supply

5/8" ID x 7/8" OD O-Ring 568-208

Part #: 568-208

$0.11
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this seal/gasket

This 5/8" ID x 7/8" OD O-Ring (568-208) from Brett Aqualine provides a reliable seal for spa sensor assemblies. The precision-molded rubber gasket fits sensors in various hot tub systems where proper sealing prevents water infiltration and maintains accurate temperature readings. With standard 568-208 dimensions, this O-ring serves as a direct OEM replacement part.

Built to exact manufacturer specifications, this sensor O-ring delivers the exact fit guaranteed you need for leak-free operation. We ship same-day from our Canadian warehouse and back every part with our 1-year warranty for complete confidence. The durable rubber construction withstands spa chemicals and temperature fluctuations for long-lasting performance. Always verify your existing O-ring dimensions before ordering to ensure proper fitment in your sensor housing.

Exact part number

568-208

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 568-208 O-ring
  • sensor well O-ring
  • temperature sensor seal
  • thermowell 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 around temperature sensor housing
  • Inaccurate or erratic temperature readings
  • OH, ICE, or HH fault codes on spa display
  • Sensor well taking on water
  • Sensor sleeve feels loose or weeps at the fitting

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 — confirm 5/8" ID x 7/8" OD
  • Inspect the sensor housing groove for cracking or corrosion that may prevent a proper seal
  • Check whether the fault code (OH, ICE, HH) is genuinely sensor-related before replacing the O-ring alone
  • Confirm this is a Brett Aqualine OEM part number — third-party sensors may use different O-ring sizing

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Install difficulty: Easy — DIY-friendlyTypically 10-20 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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