1-3/4" ID x 2" OD Heater O-Ring 568-224

Name: 1-3/4" ID x 2" OD Heater O-Ring 568-224
Brand: Brett Aqualine
SKU: 568-224
Price: 0.93 USD
Availability: InStock

Part #: 568-224

$0.93

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

About this seal/gasket

This Brett Aqualine 1-3/4" ID x 2" OD heater O-ring provides a reliable seal for spa heater assemblies in most residential hot tubs and swim spas. With precise 568-224 sizing and 1/8" cross section, this replacement O-ring prevents water leaks around your heater union connections, ensuring efficient heating performance and protecting your spa's electrical components from moisture damage.

Built to OEM specifications, this heater O-ring delivers an exact fit guaranteed to match your original part. We ship same-day for fast repairs, and every O-ring includes our comprehensive 1-year warranty for complete peace of mind. The durable elastomer construction withstands chlorine, bromine, and temperature extremes for long-lasting performance. Always drain your spa and allow the heater to cool completely before installation, and apply a thin layer of silicone lubricant for easier assembly and optimal sealing.

Exact part number

568-224

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Also known as / Replaces

This part replaces or is interchangeable with:

568-224 O-ring
AS-568-224 O-ring
heater manifold O-ring
heater union 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 around heater union connections
Spa losing water level with no visible plumbing leak elsewhere
Heater shutting down due to low flow caused by air intrusion at union seal
Visible mineral deposits or corrosion staining around heater fitting
Rubber O-ring visibly cracked, flattened, or deformed on inspection

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

Before you buy — quick checklist

Measure your existing O-ring — confirm 1-3/4" ID, 2" OD, and 1/8" cross section before ordering
Verify this is the O-ring seated at the heater union, not a bulkhead or circulation fitting
Inspect the O-ring groove and union seat for cracks or damage — a new O-ring won't seal against a damaged mating surface
Confirm your heater manifold accepts a 568-224 cross-section — do not assume by union size alone
Have silicone-based lubricant on hand before starting — do not use petroleum-based grease on elastomer O-rings

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

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

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