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1/2" ID x 11/16" OD O-Ring 805-0112 - Bubbles Supply

1/2" ID x 11/16" OD O-Ring 805-0112

Part #: 805-0112

$1.46
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 Waterway 1/2" ID x 11/16" OD O-Ring (805-0112) provides a reliable seal for drain plugs in most spa and hot tub systems. As an OEM Waterway part, this precision-molded rubber O-ring ensures your drain plug creates a watertight seal, preventing leaks that can damage your spa's internal components or surrounding areas.

Built to Waterway's exacting standards, this O-ring delivers the exact fit your spa requires for optimal performance. At Bubbles Supply, we guarantee this part will fit as specified, ship the same day when ordered before our cutoff, and back it with our full 1-year warranty for complete peace of mind. Before installation, clean both the O-ring groove and drain plug threads thoroughly, and apply a thin layer of silicone lubricant to ensure proper seating and easy future removal.

Exact part number

805-0112

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 1/2 inch O-ring
  • Drain plug O-ring
  • Waterway O-ring 805-0112

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:

  • Slow drip or seep around drain plug
  • Drain plug leaking after tightening
  • Water loss with no visible plumbing damage
  • O-ring visibly cracked, flattened, or brittle
  • Drain plug difficult to seat properly

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 1/2" ID x 11/16" OD
  • Inspect the O-ring groove for damage or debris that could prevent a proper seal
  • Confirm your drain plug is Waterway brand — O-ring dimensions vary by manufacturer
  • Check that the O-ring groove is not worn or out-of-round, which can cause a new O-ring to leak regardless

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

Install difficulty: Easy — DIY-friendlyTypically 5-15 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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