Zodiac - Replacement electrode cell Ei² 25 g/h - R0759000

Zodiac – Replacement electrode cell Ei² 25 g/h – R0759000

The Zodiac R0759000 is the official replacement electrode cell for the Zodiac Ei² salt water chlorinator system, rated at 25 grams of chlorine per hour. The electrode cell is the core functional component of a salt chlorination system: it uses electrolysis to convert dissolved salt in the pool water into active chlorine, providing continuous, automated pool disinfection without the need for manual chemical dosing. When the electrode blades wear out over time and chlorine production drops, replacing the cell with this original Zodiac part restores the system to full performance.

This cell is designed and sold as a direct OEM replacement, ensuring full electrical and mechanical compatibility with the original Zodiac Ei² chlorinator housing and control unit.

Technical characteristics and construction

The R0759000 electrode cell is constructed from a titanium alloy, a material chosen for its exceptional resistance to the aggressive electrochemical environment inside a chlorinator. Titanium electrodes offer a long operational lifespan compared to standard metallic alternatives. The cell incorporates a self-cleaning mechanism based on polarity inversion: the electrical polarity of the electrodes is periodically reversed during operation, which causes any calcium or limescale deposits to detach from the electrode surfaces automatically. This significantly reduces manual maintenance requirements and helps maintain consistent chlorine output over time, even in harder water conditions. The cell produces up to 25 g/h of chlorine, making it suitable for pools of a corresponding size range as specified by Zodiac for the Ei² system. Compatibility is confirmed for the Zodiac Ei, Ei² Expert, GenSalt OE, and GenSalt OT salt chlorinator ranges.

Suitability and application

This replacement electrode cell is intended exclusively for owners of Zodiac Ei², Zodiac Ei, GenSalt OE, and GenSalt OT salt water chlorination systems whose existing cell has reached the end of its service life or is no longer producing sufficient chlorine. It is an original Zodiac spare part, not an aftermarket alternative, which means it meets the manufacturer’s quality and safety standards and will integrate seamlessly with the existing control electronics. This product is not a standalone chlorinator — it must be installed into a compatible Zodiac chlorinator housing. It is suitable for residential outdoor pools where salt chlorination is already in use. If you are experiencing reduced chlorine output from your Zodiac salt system, replacing the electrode cell with this OEM part is the recommended first corrective step before considering a full system replacement.