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8-1/2" x 3-15/16" Adapter Plate 9917-102123 - Bubbles Supply

8-1/2" x 3-15/16" Adapter Plate 9917-102123

Part #: 9917-102123

$27.22
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this union/fitting

This Gecko Alliance adapter plate (part #9917-102123) is designed for IN.K450 spaside control systems, providing a secure mounting interface between your spa's control pack and topside panel. Measuring 8-1/2" x 3-15/16" OD, this OEM adapter plate ensures proper alignment and weatherproof seal for reliable spa operation.

At Bubbles Supply, we guarantee an exact fit for your Gecko control system with authentic OEM parts that ship same-day from our Canadian warehouse. Every adapter plate includes our comprehensive 1-year warranty for complete peace of mind. Verify your existing plate dimensions and part number before ordering to ensure proper compatibility with your spa's control configuration.

Exact part number

9917-102123

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Also known as / Replaces

This part replaces or is interchangeable with:

  • IN.K450 adapter plate
  • spaside panel mounting plate
  • topside control adapter plate

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 control panel not seating flush against spa cabinet
  • Water intrusion behind spaside panel causing corrosion or electrical faults
  • Cracked or warped adapter plate allowing panel to shift or rattle
  • Missing mounting interface preventing topside reinstallation after cabinet repair
  • Loose or misaligned control panel causing intermittent connectivity issues

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

Before you buy — quick checklist

  • Confirm your topside control is the IN.K450 model — check the label on the back of your existing spaside panel
  • Measure your existing adapter plate: must be 8-1/2" x 3-15/16" OD to confirm match
  • Verify the part number on your current plate matches 9917-102123 before ordering
  • Inspect the cutout opening in your spa cabinet shell — the new plate must match that opening exactly
  • Check that the screw hole pattern on your cabinet aligns with this plate before installation

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

Install difficulty: Easy — DIY-friendlyTypically 15–30 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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