Zodiac - Replacement electrode for Ei² 12 salt chlorinator - R0673600

Zodiac – Replacement electrode for Ei² 12 salt chlorinator – R0673600

The Zodiac R0673600 is the official original replacement electrode for the Zodiac Ei² 12 salt chlorinator. The electrode is the core functional component of the salt chlorination system: it is submerged in the pool water and uses electrolysis to convert dissolved salt (sodium chloride) into free chlorine, disinfecting the pool water continuously and automatically without the need to handle or dose traditional chlorine products manually.

This electrode is manufactured to the original Zodiac specification, ensuring full electrical and mechanical compatibility with the Ei² 12 unit. Using an official OEM part guarantees that the chlorinator continues to operate at its rated output of 12 grams of chlorine per hour, maintaining effective water sanitation for your pool.

Technical characteristics and construction

The electrode is constructed from a titanium alloy substrate, which is coated with a ruthenium-based mixed metal oxide (MMO) active layer. Titanium is chosen for this application because of its exceptional resistance to the aggressive electrochemical environment inside the chlorinator cell — it does not corrode when exposed to saline water and electrical current over extended periods.

The Zodiac Ei² electrode operates using polarity inversion self-cleaning technology. At regular intervals, the chlorinator automatically reverses the electrical polarity applied to the electrode plates. This reversal causes any calcium scale deposits that have begun to form on the electrode surface to detach and dissolve back into the water, significantly reducing or eliminating the need for manual acid cleaning. This self-cleaning mechanism extends the functional service life of the electrode considerably compared to fixed-polarity designs.

The chlorine production capacity of this electrode is rated at 12 g/h, meaning it is matched specifically to the Ei² 12 model. Running the chlorinator for the appropriate number of hours per day based on pool volume and bather load will provide reliable residual chlorine levels in the pool water.

Suitability and buying context

This replacement electrode is intended for owners of the Zodiac Ei² 12 salt chlorinator whose existing electrode has reached the end of its service life, has suffered physical damage, or whose chlorine output has declined significantly despite correct salt levels and operating conditions. Over time, the active coating on salt chlorinator electrodes is consumed through normal electrochemical use, and replacement of the electrode is a routine maintenance event in the lifespan of any salt water pool system.

The R0673600 is the correct and officially specified part for the Ei² 12 model. It is an official and original Zodiac spare part, ensuring it meets the performance and safety requirements of the original equipment. Fitting a non-OEM electrode may result in reduced chlorine output, incompatibility, or accelerated wear of the control unit. This part is suitable for residential and small commercial pool installations that use the Zodiac Ei² 12 chlorination system.