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ST Mini Trapezoid Topside X310342 - Bubbles Supply

ST Mini Trapezoid Topside X310342

Part #: X310342

$861.33
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this topside/keypad

This ST Mini Trapezoid Topside Control Panel (X310342) is a genuine OEM replacement for Master Spa hot tubs featuring the compact trapezoid-style interface. The 15-foot cord length provides flexible installation positioning while maintaining reliable connection to your spa's control system. This authentic Master Spa part ensures seamless integration with your existing control pack and maintains all original functionality.

At Bubbles Supply, you get the exact fit guaranteed with genuine OEM quality, plus our industry-leading same-day shipping and comprehensive 1-year warranty for complete peace of mind. This topside panel delivers the precise control interface your Master Spa was designed with, restoring full access to temperature, jets, lights, and other spa functions. Verify your current topside's cord length and connector type before ordering to ensure proper installation compatibility.

Exact part number

X310342

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • Master Spa Topside Controller
  • ST Mini Topside Control Panel
  • Trapezoid Topside Panel

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:

  • Topside panel unresponsive or completely dead
  • Buttons not registering presses
  • Display blank or flickering
  • Spa functions inaccessible from topside (jets, lights, temperature)
  • Cracked or water-damaged panel face
  • Error codes related to topside communication failure

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

Before you buy — quick checklist

  • Confirm your existing topside is the ST Mini Trapezoid style — measure and compare panel dimensions before ordering
  • Verify your current cord length (this unit is 15 ft) matches your installation routing needs
  • Check your spa's control pack is compatible with this topside model — consult your spa's wiring diagram or control pack label
  • Inspect the connector type on your existing topside cord and confirm it matches this replacement
  • Note your spa's model and serial number and cross-reference with Master Spa documentation to confirm fitment

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

Install difficulty: Medium — Some experience neededTypically 30–60 minutes

What's in the box

  • ST Mini Trapezoid Topside Control Panel
  • 15-foot cord with connector

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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