🚀 New launch promo — 10% off orders over $300. Use code LAUNCH10
Bubbles Supply
Not sure which part you need? Upload a photo and we'll find it. →
Pump Seal PS-100 - Bubbles Supply

Pump Seal PS-100

Part #: PS-100

$12.69
In stock — ships today
Qty
🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
Add to B2B order list

Not sure this fits?

Send us a photo of your old part — we'll confirm the right replacement before you order.

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

About this seal/gasket

The US Seal PS-100 Pump Seal is a precision-engineered replacement seal designed for spa circulation and jet pumps with 5/8" shafts. This OEM-quality seal features a 1.218" seal outer diameter and 1.187" seat outer diameter, making it compatible with various spa pump models that require these exact specifications. Built to original equipment standards, this seal effectively prevents water leakage between the pump's wet and dry ends.

At Bubbles Supply, we guarantee this PS-100 pump seal will deliver an exact fit for your spa pump application. Every seal ships the same day you order and comes backed by our comprehensive 1-year warranty for complete peace of mind. Professional installation is recommended, and always verify your pump's shaft diameter and seal dimensions before ordering to ensure proper fitment and optimal performance.

Exact part number

PS-100

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • impeller seal
  • PS100
  • pump mechanical seal
  • shaft seal
  • wet end 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 dripping or leaking from pump housing
  • Wet end leaking where shaft exits the motor
  • Visible mineral deposits or corrosion around pump shaft area
  • Pump runs but loses prime repeatedly
  • Seal failure causing water intrusion into motor bearing

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

Before you buy — quick checklist

  • Confirm your pump shaft diameter is 5/8" before ordering — this seal will not fit 1/2" or 3/4" shaft pumps
  • Verify seal outer diameter is 1.218" and seat outer diameter is 1.187" matches your existing seal
  • Inspect the impeller and volute for cracks or damage before replacing the seal — a damaged wet end will cause the new seal to fail prematurely
  • Note your pump brand and model number so you can cross-reference fitment if needed
  • Check whether your pump uses a single or double seal configuration — this listing is for a single mechanical seal

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

Install difficulty: Medium — Some experience neededTypically 45-90 minutes

Warranty

1 year 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.

🔒 Secure checkout · SSL encrypted·🇺🇸🇨🇦 Serving the US and Canada·↩️ 30-day hassle-free returns·📦 Same-day fulfillment