Zodiac Jandy JXi 200–400 Transformer Kit (R0456301) bathpumps A properly selected carbon replacement

A properly selected carbon replacement helps restore intended support performance and contributes to cleaner routine maintenance

A circuit board is useful because it acts as the control hub for multiple spa functions

A nut like this is useful because it helps hold the cover in place

or unreliable in daily operation

Useful when the original cover-and-frame set is worn or damaged

Zodiac Jandy JXi 200–400 Transformer Kit (R0456301) bathpumps A properly selected carbon replacementIdeal for careful pool equipment rebuilds, Zodiac Jandy JXi 200400 Transformer Kit (R0456301) is a replacement electrical: transformers component for Jandy JXi heater applications. It is used for supplying stepped down control voltage, and it keeps low voltage controls, relays, and safety circuits powered correctly. For JXi heaters, matching the exact service kit matters because combustion, water flow, and control components are tightly integrated