🚀 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. →
48-0041A-K

1" ID x 1-1/4" OD Heater Gasket Kit 48-0041A-K

Part #: 48-0041A-K

$22.48
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

Also replaces

48-0041A
1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this seal/gasket

The HydroQuip 1" ID x 1-1/4" OD Heater Gasket Kit 48-0041A-K provides essential sealing components for double barrel spa heaters. This OEM gasket kit ensures proper sealing between heater sections, preventing water leaks and maintaining optimal heating performance in compatible HydroQuip heating systems.

Featuring precise 1" inner diameter and 1-1/4" outer diameter specifications, this genuine HydroQuip gasket kit delivers the exact fit your spa heater requires. At Bubbles Supply, we guarantee exact fitment with same-day shipping on in-stock orders and back every gasket kit with our comprehensive 1-year warranty. Replace worn or damaged heater gaskets at the first sign of leaking to prevent costly water damage and ensure efficient spa operation.

Exact part number

48-0041A-K

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 48-0041A
  • double barrel heater gasket
  • heater element gasket set
  • heater tube gasket kit
  • HydroQuip heater gasket kit

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 beneath the heater assembly
  • Damp or wet insulation around the heater barrel
  • Heater-adjacent error codes triggered by low pressure or flow
  • Visible mineral deposits or staining around heater tube joints
  • Slow water loss with no obvious plumbing leak elsewhere

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

Before you buy — quick checklist

  • Confirm your heater is a HydroQuip double barrel style — gasket dimensions are specific to this design
  • Measure your existing gaskets: ID should be 1 inch, OD should be 1-1/4 inch
  • Inspect the heater tube ends and mating surfaces for cracks or corrosion before ordering — gaskets won't seal against damaged surfaces
  • Check whether the leak is at the gasket joint vs. the element flange or union — this kit addresses the barrel sealing gaskets only
  • Have a drain-down plan before starting — you'll need to lower water below the heater level

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

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

What's in the box

  • Heater tube gaskets (quantity per kit)
  • Installation instructions

If your order is missing any items listed above, contact hello@bubblessupply.com within 48 hours of delivery.

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.

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