Revitalize your Whirlpool tub with the Hydro Systems CIDU-252-01-01-01 Keypad Replacement Retrofit Kit, a precise, durable upgrade that brings modern control to an aging system without the cost or downtime of a full unit replacement. If the original CIDU-252-01-01-01 keypad or its paired control boxes have failed or been discontinued for years, this retrofit delivers a complete, compatible overhaul that restores your spa’s performance and reliability. What makes this kit stand out - Original-system compatibility with a modern touch: engineered to overhaul the existing electronic setup while pairing seamlessly with your tub’s original air blower, preserving the familiar feel you rely on. - Flexible, spa-worthy control: enjoy multiple adjustable speeds for tailored hydro-massage, dynamic wave and pulse modes for evolving patterns, a precise 20-minute timer to manage soak sessions, and a practical dry cycle to purge moisture and extend component life. - True retrofit, not replacement: designed to revive a Whirlpool bath without ripping out the entire system, delivering long-lasting functionality while keeping your tub’s core hardware intact. - Straightforward upgrade path: if you need a new air blower to pair with the retrofit, there’s a compatible model designed to integrate smoothly with this kit. Kit contents - 2.5" Square 3-Button Keypad - 120V 60Hz Control Box - 6 ft Keypad Cable Key details for compatibility and installation - This kit is the focused solution for reviving Whirlpool bath control when the CIDU-252-01-01-01 keypad or related control boxes have failed or been discontinued for over a decade. - It is compatible with the original air blower, preserving the tub’s established performance profile while introducing modern control. - If your setup requires a new air blower to pair with the retrofit, we offer a model that integrates seamlessly with the CIDU-252-01-01-01 Keypad Replacement Retrofit Kit. Who benefits most - Homeowners with older Hydro Systems tubs needing reliable control without a full unit replacement. - Technicians and service professionals seeking a dependable retrofit to revive baths quickly and cost-effectively. - Anyone wanting precise, programmable hydro massage features while maintaining the tub’s original configuration. Use cases and practical benefits - Minimize downtime in high-usage spa baths by restoring full functionality quickly. - Customize therapy with variable speeds, wave, and pulse modes within a single soak, or across multiple sessions without swapping components. - Manage soak length with a clear 20-minute timer, giving families a predictable, relaxing routine. - Extend component longevity by incorporating the dry cycle to purge moisture from air channels and reduce maintenance needs. Why choose Whirly Bros - Expert guidance to confirm compatibility during purchase, so you’re confident in your retrofit choice. - No-hassle shipping to get you back to soaking sooner. - Customer-first support from real people based in Southern California, ready to help with installation and troubleshooting. Revitalize your Whirlpool bathtub experience with the CIDU-252-01-01-01 Keypad Replacement Retrofit Kit—a precise, durable solution that blends modern control capabilities with your tub’s existing hardware. Ready for installation and backed by Whirly Bros’ commitment to service, this kit helps you soak, relax, and unwind with confidence.