Balboa 8-Button Serial Duplex [2 Pump] Topside Panel Overlay (10389)

Type:	Topside Panel Overlays
Mfr	Balboa Water Group
Mfg Part #	10389
Hzn Part #	58-138-1261
Replaces:	10389, 10389, 389137

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TAGS: balboawater, spaparts, topsideoverlays

Details

(DISCONTINUED BY MANUFACTURER)

SEE REPLACEMENT PART: OBSOLETE

In a two-pump duplex system, the control panel has more responsibility than a basic topside. It needs to communicate more functions clearly and keep the spa easy to manage even when several features are in play. This eight-button overlay is designed to restore that clarity when the original surface has started to wear down.

A duplex layout depends on organization. When the overlay is faded or damaged, the panel can feel more complicated than it really is, simply because users have to pause longer to confirm what each button does. That small interruption changes the way the spa feels to use, especially in a system where quick control adjustments matter.

Replacing the overlay is a highly focused repair that refreshes the interface without forcing a full topside replacement. It is the kind of solution homeowners appreciate because it fixes the visible problem directly while preserving the electronics that are still doing their job.

Because this piece is matched to the two-pump Serial Duplex layout, the original control logic stays intact. You are not changing the system. You are restoring ease of use and visual clarity.

Once installed, the panel feels easier to read, more balanced, and better matched to the level of control a duplex system is supposed to offer.

Designed for eight-button Serial Duplex two-pump topside layouts
Restores readability to a more complex control interface
Helps preserve the intuitive feel of duplex system operation
Improves appearance without replacing working electronics
Good fit for homeowners refreshing a worn multi-function panel

Balboa Water Group – Spa Systems, Pumps, Heaters & Control Components

Who is Balboa Water Group?

Balboa Water Group is the world’s largest manufacturer of spa systems, components, and control technology, producing an estimated 70% of all hot tub systems globally. With decades of industry leadership, Balboa is the driving force behind many of the pumps, heaters, control packs, and circuit boards used by top spa brands. Known for innovation, reliability, and engineering excellence, Balboa has become the standard for spa system performance worldwide.

What products does Balboa Water Group specialize in?

Balboa specializes in complete spa system solutions, including control systems, topside panels, circuit boards, heaters, pumps, sensors, jets, and accessories. Their systems are designed to seamlessly integrate temperature control, water flow, filtration, and lighting. Balboa products are widely used in both new spa manufacturing and replacement parts, making them one of the most commonly sourced brands for hot tub repair and upgrades.

Why choose Balboa Water Group parts for your pool or spa?

Balboa parts are trusted for their compatibility, durability, and consistent performance across a wide range of spa systems. Because Balboa components are used in the majority of hot tubs on the market, finding compatible replacement parts is easier and more reliable. Their advanced control technology allows precise management of temperature, jet functions, and energy usage, helping extend equipment life while improving the overall spa experience.

How do you identify and choose the correct Balboa Water Group part?

To select the correct Balboa part, it’s important to match your existing system’s model number, circuit board type, heater configuration, and topside control compatibility. Checking labels on control packs and referencing wiring diagrams or product manuals ensures proper fit and function. Choosing the correct Balboa component helps maintain system efficiency, prevents compatibility issues, and ensures safe operation.

Need help finding the right Balboa Water Group part?

At Bath & Spa Parts Online, we carry a wide selection of Balboa Water Group pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.