🚀 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. →
AX10A2 Auxilliary Topside G8912 - Bubbles Supply

AX10A2 Auxilliary Topside G8912

Part #: G8912

$127.98
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 topside/keypad

The Balboa AX10A2 Auxiliary Topside is a genuine BWG (Balboa Water Group) control panel designed for spas equipped with Balboa control systems. This OEM topside controller features Jet 2 functionality without an overlay, providing essential spa operation controls for your hot tub's secondary functions.

As an authentic Balboa replacement part, this auxiliary topside delivers reliable performance and seamless integration with your existing control pack. At Bubbles Supply, we guarantee an exact fit with our genuine OEM parts, backed by our comprehensive 1-year warranty and same-day shipping to get your spa running quickly. The AX10A2 connects directly to compatible Balboa control systems - verify your current topside model number and system compatibility before ordering to ensure proper installation and functionality.

Exact part number

G8912

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • AX10A2 Aux Panel
  • AX10A2 Auxiliary Topside
  • Balboa Auxiliary Control Panel
  • Secondary Topside Controller

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:

  • Jet 2 button unresponsive or non-functional
  • Auxiliary topside shows no display or backlight
  • Buttons physically cracked, stuck, or worn through
  • Secondary control panel fails to communicate with main control pack
  • Spa won't respond to auxiliary panel inputs while primary topside works fine

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

Before you buy — quick checklist

  • Confirm your spa's main control pack is a compatible Balboa system before ordering
  • Locate your existing topside model number — it's usually printed on the back of the panel or on a label near the connector
  • Verify the connector type and pin count on your current auxiliary topside matches the AX10A2
  • Note that this panel ships without an overlay — confirm your application does not require one
  • Check whether your spa uses a primary topside plus an auxiliary topside, or a single panel only
  • Do not assume compatibility based on brand alone — Balboa produces multiple connector styles across product generations

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

Install difficulty: Medium — Some experience neededTypically 20-45 minutes

What's in the box

  • AX10A2 Auxiliary Topside panel
  • Connecting cable (verify inclusion at time of order — cable may be sold separately)

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