Product Details
- Product type: Electrode replacement
- Part number: R0511400
- Electrode size/style: 35 electrode
- Brand compatibility: Select Zodiac AquaPure Ei Series electronic salt water chlorine generators
- Common use: Replacing a worn or damaged electrode in compatible AquaPure Ei systems
- Best for: Restoring proper salt cell operation when the existing electrode has failed
- Installation area: Inside compatible AquaPure Ei salt chlorine generator cell housing
- Not included: Full control unit, power center, plumbing parts, and pool salt unless listed in the package
For other AquaPure replacement options, the Jandy PLC700 AquaPure salt chlorine generator replacement cell may be reviewed separately, but it should not be treated as a substitute for this Ei Series electrode.
Compatibility Notes
This R0511400 electrode is intended for select Zodiac AquaPure Ei Series systems. It should not be selected by appearance alone and should not be treated as a universal replacement for all Zodiac, Jandy, AquaPure, PureLink, or salt chlorine generator models.
If you are comparing larger AquaPure cell kits, the Jandy Zodiac AquaPure PLC1400 saltwater cell kit may be useful for reference, but compatibility must be checked carefully because it is a different product type.
Always match the electrode part number with the label on your existing system, the owner’s manual, and the control setup before ordering.
When to Replace the Electrode
This electrode may need replacement if the salt chlorine generator is producing low chlorine, showing service alerts, failing after proper cleaning, or has visible wear, scaling, cracks, or damaged plates.
Before replacing the electrode, check salt level, water balance, flow, cable connections, and the cell housing condition. Poor water chemistry or low flow can cause performance issues even when the electrode is still usable.
Installation Guidance
Turn off power to the pool equipment before removing the old electrode. Follow the AquaPure Ei installation instructions and make sure the electrode is seated correctly inside the cell housing.
Inspect O-rings, seals, connectors, and the housing before reassembly. Do not force the electrode into place, and do not reuse damaged seals or hardware.
If the power connection also needs service, the Zodiac R0402700 8-foot DC power cord replacement may be a related AquaPure part to review.
Related AquaPure Parts
If your installation requires a longer cord, compare the Zodiac R0402800 16-feet DC power cord replacement before choosing a cable.
For systems using a larger AquaPure/PureLink setup, the Zodiac 6613AP PureLink standard power center may be a related control-side component to inspect separately.
Maintenance and Troubleshooting
Inspect the electrode regularly for calcium buildup, debris, loose connections, or signs of wear. Clean only according to the manufacturer’s instructions and avoid scraping the electrode plates with sharp tools.
After installation, test the pool water and confirm salt level, pH, stabilizer, calcium hardness, flow, and chlorine output. If problems continue after replacing the electrode, inspect the cell housing, cables, control board, power center, and water chemistry before replacing more parts.












