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10' Extension Cable 30311 - Bubbles Supply

10' Extension Cable 30311

Part #: 30311

$17.64
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 10-foot extension cable (part #30311) is a genuine Balboa OEM spaside control extension designed for Balboa spa systems. The cable provides reliable connection between your spa's control panel and the main system electronics, giving you flexibility in control panel positioning while maintaining full system functionality.

Built to Balboa's exact OEM specifications, this extension cable ensures seamless integration with your existing spa wiring. At Bubbles Supply, we guarantee an exact fit for your Balboa system and back every cable with our comprehensive 1-year warranty. Your order ships the same day for minimal downtime. Before installation, ensure power is disconnected and verify your existing cable connections match this 10-foot configuration for proper system operation.

Exact part number

30311

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Also known as / Replaces

This part replaces or is interchangeable with:

  • Balboa spaside extension cable
  • control panel extension cord
  • topside control extension cable

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 is unresponsive or intermittently drops out
  • Control panel won't reach desired mounting location with existing cable length
  • Damaged, frayed, or corroded spaside extension cable
  • Error codes caused by poor signal between topside and main board
  • Control panel display flickering or losing communication with pack

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

Before you buy — quick checklist

  • Verify your existing topside cable connector type matches — Balboa uses several connector styles and not all are interchangeable
  • Confirm 10 feet is the correct length for your installation — measure the run from your control box to the topside mount location before ordering
  • Check whether your system uses a standard Balboa topside cable or a proprietary variant tied to a specific control system (e.g., VS, GS, EL series)
  • Inspect the connector on your existing topside control for pin count and housing style to ensure compatibility
  • Disconnect power at the breaker before handling any spaside wiring

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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