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MS5000 Hot Tub Pack X300025 - Bubbles Supply

MS5000 Hot Tub Pack X300025

Part #: X300025

$2255.32
In stock — ships today
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Also replaces

X300025
1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this hardware/other

The MS5000 Hot Tub Pack X300025 is a genuine OEM heater assembly designed for Master Spa hot tubs. This complete heating pack delivers reliable performance to maintain your spa's optimal water temperature, featuring robust construction that meets Master Spa's original equipment standards.

When your spa displays HH or OH error codes, this replacement pack restores proper heating function with exact fit guaranteed. We ship same-day from our Canadian warehouse and back every MS5000 pack with a full 1-year warranty for complete peace of mind. Our OEM parts ensure seamless integration with your existing spa system, eliminating compatibility concerns and delivering the performance your Master Spa was designed for. Verify your current pack's part number matches X300025 before ordering to ensure proper fitment with your specific spa model.

Exact part number

X300025

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • MS5000 heater pack
  • MS5000 heating assembly
  • X300025
  • X300025 heater pack

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:

  • HH error code displayed on topside controller
  • OH (overheat) error code triggered repeatedly
  • Spa water not heating or holding temperature
  • Heater element failure confirmed on diagnostic
  • Spa cycling off prematurely due to thermal fault

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

Before you buy — quick checklist

  • Confirm your existing pack's part number is X300025 before ordering — do not rely on model name alone
  • Verify this is a Master Spa branded unit, not a rebranded OEM shared with another manufacturer
  • Check your topside display for active error codes (HH or OH) to confirm heater pack is the root cause before replacing
  • Inspect pressure switch and sensors before replacement — these can trigger the same error codes and may not require a full pack swap
  • Confirm your spa's voltage matches the pack specifications before installation

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

Install difficulty: Medium — Some experience neededTypically 60-90 minutes

What's in the box

  • MS5000 heater pack assembly (X300025)
  • Replacement O-rings or gaskets (if included by manufacturer)

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.

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