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Pump Seal PS-3868 - Bubbles Supply

Pump Seal PS-3868

Part #: PS-3868

$26.95
In stock — ships today
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🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this seal/gasket

The US Seal PS-3868 is a premium Viton pump seal designed for salt water and ozone sanitizer systems in residential spas and hot tubs. This heavy-duty seal features a 3/4-inch shaft diameter and 1.343-inch seal outer diameter, specifically engineered to withstand the harsh chemical environment of sanitized spa water where standard seals would quickly deteriorate.

Built from corrosion-resistant Viton material, this OEM-quality replacement seal delivers superior performance against salt, ozone, and other aggressive sanitizer chemicals. At Bubbles Supply, we guarantee an exact fit for your pump assembly and back every seal with our comprehensive 1-year warranty. Most orders ship the same day for minimal downtime. Before installation, always verify your pump's shaft diameter and seal housing measurements to ensure proper fitment and optimal sealing performance.

Exact part number

PS-3868

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Also known as / Replaces

This part replaces or is interchangeable with:

  • impeller seal
  • PS3868
  • pump mechanical seal
  • shaft seal

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 from the front of the pump housing
  • Seal face weeping or dripping at the shaft
  • Visible mineral deposits or corrosion around the pump seal area
  • Seal failure after exposure to salt or ozone sanitizer systems
  • Premature seal wear or cracking from chemical degradation

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

Before you buy — quick checklist

  • Measure your pump shaft diameter — must be 3/4 inch for correct fitment
  • Measure the seal housing bore to confirm 1.343-inch outer diameter compatibility
  • Verify your spa uses a salt water or ozone sanitizer system — this Viton seal is optimized for those chemical environments
  • Identify your existing seal brand and part number to cross-reference before ordering
  • Inspect the seal seat and housing for scoring or damage — a damaged seat will cause the new seal to fail regardless of seal quality

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

Install difficulty: Medium — Some experience neededTypically 45-90 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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