Balboa 4-Button E4 AX40 Topside Panel Overlay (40030)

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Control accuracy in a spa does not just depend on electronics, it also depends on how clearly those controls are presented. This overlay is built for the E4 AX40 configuration, ens uring that each function is labeled in a way that matches the system beneath it. Over time, exposure to moisture, cleaning products, and daily use can break down the printed surface. When that happens, the panel can start to feel unreliable even if it still responds correctly. Replacing the overlay addresses that issue directly without affecting the internal components. This version keeps the intended layout intact, which is critical for maintaining familiarity. Users can continue operating jets, temperature, and other functions without second guessing what each button represents. It is a small change that has a noticeable effect, bringing the control area back to a condition that feels more precise and complete. Matched to E4 AX40 topside panel configurations Restores clear and accurate function labeling Helps eliminate confusion from worn overlays Preserves the original control layout and usability Ideal for maintenance and refurbishment work Show more