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3' Extension Cable 30395 - Bubbles Supply

3' Extension Cable 30395

Part #: 30395

$36.46
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this cord/connector

This Balboa 3-foot extension cable (part #30395) connects your spa-side control panel to your Balboa spa system, providing the extra length needed for flexible installation or panel relocation. The 8-pin phone-style connector ensures reliable data transmission between your control interface and spa electronics in Balboa-equipped hot tubs and spas.

Built to Balboa's OEM specifications, this electrical extension delivers the exact fit and performance your spa system requires. At Bubbles Supply, we guarantee precise compatibility and back every part with our 1-year warranty, plus same-day shipping to get your spa running again fast. Before installation, verify your existing spa-side cable uses the same 8-pin phone connector and confirm the 3-foot length provides adequate reach for your specific setup.

Exact part number

30395

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 8-pin phone connector extension
  • Balboa spa-side extension cable
  • hot tub panel extension cord
  • topside control cable extension

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 responding due to cable too short
  • Spa-side panel relocated and existing cable won't reach control box
  • Intermittent topside control dropout from a strained or kinked cable
  • No display on topside panel after cabinet modification or panel move
  • Error codes on topside display caused by a damaged or stretched original cable

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

Before you buy — quick checklist

  • Confirm your existing spa-side cable uses an 8-pin phone-style (RJ-type) connector — not all Balboa systems use the same pin count
  • Measure the gap between your topside panel and the control box before ordering to ensure 3 feet provides the reach you need
  • Verify your spa runs a Balboa control system — this cable is not cross-compatible with other brands' proprietary connectors
  • Inspect the existing cable for connector damage; if the connector is broken at the control box end, you may need a full replacement cable rather than an extension
  • Check whether your spa cabinet has a routed cable channel — you may need more or less than 3 feet depending on the routing path

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

Install difficulty: Easy — DIY-friendlyTypically 10-20 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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