
Pentair
Pentair EC-520554 IntelliChlor® IC20 Salt Chlorine Generator
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Part Number
EC-520554
Guaranteed to Fit These Models (1)
Details
Your Pentair IntelliChlor IC20 Salt Chlorine Generator works by passing pool water over a series of electrically charged plates, which then break down salt (sodium chloride) into pure chlorine. This chlorine sanitizes your pool water, killing algae and bacteria. Like any component with moving parts or electrical functions, the electrolytic cell within the IC20 has a finite lifespan. Over several years of operation, mineral scale can build up on the plates, reducing their surface area and their ability to generate sufficient chlorine. Additionally, the plates themselves can degrade over time from constant electrical current and chemical exposure, eventually failing to produce any chlorine at all. This degradation is a natural part of the product's lifecycle, typically requiring cell replacement every 3-7 years depending on usage and water chemistry maintenance.
If the IntelliChlor IC20 cell fails and is not replaced, you will lose your primary method of automatic chlorine generation. This means you will need to manually add chlorine to your pool to keep it sanitized. Without consistent sanitation, your pool water can quickly become cloudy, develop algae blooms, and become unsafe for swimming due to bacterial growth. Furthermore, an improperly functioning or completely failed cell can sometimes lead to error codes or shutdowns of the entire IntelliChlor system, requiring immediate attention to restore proper pool operation and water quality.
Specifications
- SKU / Part Number
- EC-520554
- Brand
- Pentair
- Primary Model
- IntelliChlor
- Compatible Models
- 1
Parts Diagram
Exploded View · 100%Tap a number for details
Position #? on the full IntelliChlor exploded diagram.
View Full Diagram →Common Signs You Need This Part
- Low chlorine levels, "Inspect Cell" light flashing or solid, Reduced water clarity, Failure to sanitize, Visible scale buildup on cell plates
Pro Tip
When replacing the IntelliChlor cell, always ensure the power to the IntelliChlor system is completely shut off at the breaker. Inspect the unions and O-rings for wear and tear, and lubricate new O-rings with a silicone-based lubricant before reassembly to ensure a watertight seal.



