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2" ID x 2-3/4" OD Heater Gasket GSC10589 - Bubbles Supply
Exact Fit

2" ID x 2-3/4" OD Heater Gasket GSC10589

Part #: GSC10589

$5.18
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 genuine OEM heater gasket is designed specifically for Hot Spring Spas heater elements, ensuring a perfect seal between your heater assembly and spa system. With precise 2" inner diameter and 2-3/4" outer diameter dimensions, this Watkins-manufactured gasket prevents water leaks and maintains optimal heating efficiency in your spa.

At Bubbles Supply, we guarantee an exact fit for your Hot Spring Spas system with our authentic OEM replacement parts. Every gasket ships same-day when ordered by our cutoff time and comes backed by our comprehensive 1-year warranty for complete peace of mind. Before installation, always drain your spa completely and verify the gasket dimensions match your existing heater element to ensure proper sealing and prevent costly water damage.

Exact part number

GSC10589

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Also known as / Replaces

This part replaces or is interchangeable with:

  • 2-inch heater gasket
  • heater element gasket
  • heater manifold gasket
  • heater tube gasket

Looking for an older part number? Check our supersession lookup tool

Fits these brands and models

Compatible brands

Hot Spring SpasWatkins Wellness
Not sure if it fits your spa? Send us a photo — we'll confirm before you order

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • Water leaking from heater assembly
  • Wet cabinet floor near heater manifold
  • Heater error codes triggered by pressure loss
  • Visible mineral deposits or seepage around heater tube
  • Spa losing water with no obvious external leak

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

Before you buy — quick checklist

  • Measure your existing gasket — confirm 2" ID and 2-3/4" OD before ordering
  • Inspect the heater tube ends and manifold seats for cracking or corrosion that could prevent a proper seal
  • Confirm your spa is a Hot Spring or Watkins-manufactured brand before purchasing
  • Check whether you need one gasket or two — most heater elements have a gasket at each end
  • Have the spa fully drained before starting — this job cannot be done with water in the system

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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