Zodiac - Complete LM2-30 cell - R0759400

Zodiac – Complete LM2-30 cell – R0759400

The Zodiac R0759400 is the complete replacement electrolytic cell for the LM2-30 salt chlorination system. The LM2-30 cell is the core component responsible for generating chlorine directly from dissolved salt in your pool water through the process of electrolysis. As pool water passes through the cell, a low-voltage electrical current causes the salt (sodium chloride) to split and produce free chlorine, which continuously sanitises the water without the need for manual dosing of traditional chlorine products. When the original cell reaches the end of its service life — typically indicated by reduced chlorine output or visible electrode wear — replacing it with this genuine Zodiac component restores the system to full operational capacity.

This is a complete cell assembly, meaning it includes the full electrolytic unit ready for installation without requiring individual electrode sourcing. It is the direct replacement for the earlier reference W202061 from Zodiac, ensuring backward compatibility with existing LM2-30 installations. The cell is engineered to the original Zodiac specification, with titanium electrodes coated with a ruthenium-based compound, which provides the electrochemical surface needed for efficient chlorine production. The LM2-30 designation refers to the production capacity of the cell, suited to pools of a moderate size. The cell connects directly to the LM2 power PCB (W222091) and is designed to integrate seamlessly within the Zodiac LM2 salt chlorinator control system.

Compatibility and installation context

The R0759400 cell is specifically designed for use with the Zodiac LM2-30 salt chlorination unit. It replaces the previous part reference W202061 and is fully compatible with the existing LM2 housing, plumbing connections, and control board. Installation involves disconnecting the existing cell from the hydraulic circuit and the power connector, then fitting the new cell in its place — a straightforward process for a qualified pool technician or experienced pool owner. The cell must be installed in-line with the pool’s circulation system, downstream of the filtration pump, to ensure consistent water flow across the electrodes during operation.

Suitability and buying guidance

This replacement cell is intended for residential pool owners and installers who operate a Zodiac LM2-30 salt chlorination system and need to restore chlorine production performance. It is the correct genuine Zodiac spare part when the original cell has degraded, scaled heavily, or failed completely. Using a genuine OEM replacement ensures that the cell matches the electrical and flow characteristics expected by the LM2 control unit, avoiding potential compatibility or warranty issues associated with third-party alternatives. If you are unsure whether your system uses the LM2-30 or the larger LM2-40 cell (R0759500), check the label on your existing cell or the original system documentation before ordering.