Product Details
- Product type: Replacement salt cell
- Brand: AutoPilot
- Model / part reference: RC-42 CLEAR / Supercell SC-48
- Cell style: Clear replacement cell body
- Use: Saltwater chlorine production
- Compatible system type: AutoPilot Pool Pilot salt chlorine generator systems
- Includes: Replacement cell only; verify included unions, cord, and fittings before publishing
- Best use case: Replacing a worn or failed RC-42 / SC-48 salt cell on a compatible AutoPilot system
Compatibility and Buyer Check
Before ordering, confirm that your current cell is marked RC-42, PPC3, or SC-48 and that your AutoPilot controller supports this cell size. Do not order based only on the product photo, because similar AutoPilot cells can look alike but may not match your system.
If you need a smaller compatible replacement option, compare this item with the AutoPilot PPC2 RC-28 replacement salt cell. If your system uses the larger RC-52 cell size, check the AutoPilot Pool Pilot Digital RC-52 replacement cell instead.
For a complete system that includes the RC-42 cell and manifold assembly, review the AutoPilot ST-42 Pool Pilot Soft Touch system before buying only the replacement cell.
What This Replacement Cell Does
The salt cell is the part that produces chlorine inside a saltwater pool system. When pool water passes through the cell, the system uses dissolved salt to create chlorine for sanitizing the water.
A worn salt cell may cause low chlorine output, warning lights, frequent cleaning needs, or unstable sanitizer levels. Replacing the cell can help restore normal chlorine production when the controller, salt level, flow, and water chemistry are already correct.
Before You Order
Check these details before purchasing:
- Confirm your current cell model is RC-42, PPC3, or Supercell SC-48.
- Verify that your AutoPilot control unit supports this replacement cell.
- Compare the cell body, unions, cord connection, and overall style with your existing part.
- Make sure the issue is not only a damaged cable, low salt level, poor water flow, or controller problem.
- If only the cable is damaged, check whether the AutoPilot salt cell cord replacement is the part you need.
- Review your system manual for reset, cell type, and calibration steps after installation.
For broader replacement guidance, see our AutoPilot salt cell replacement guide before replacing multiple parts.
Installation and Setup Notes
Turn off pool equipment and power to the salt chlorine generator before removing the old cell. Install the replacement cell in the same plumbing position and flow direction as the original unit.
Make sure the unions are seated correctly and the cell is installed without cross-threading. After installation, check for leaks, restore power, and allow the system to run long enough to confirm normal operation.
Some systems may require a cell-type setting, reset, or output adjustment after replacement. Always follow the AutoPilot manual for your specific controller.
Maintenance Tips
To help the replacement cell perform properly:
- Keep the pool salt level within the range recommended by the AutoPilot system manual.
- Maintain proper water balance, especially pH, calcium hardness, and stabilizer levels.
- Inspect the cell regularly for scale buildup.
- Clean the cell only when needed and only with approved cleaning methods.
- Avoid over-cleaning, harsh chemical soaking, or scraping the plates.
Keep water flowing properly through the cell during operation.










