Replacement for Discontinued Pentair IC20
This salt cell serves as a replacement for the Pentair 520544 IC20, which is no longer manufactured. It connects seamlessly to the Pentair control box. The fit and connection are straightforward, making it a suitable option for those needing to replace the discontinued model.
Pros
- + Seamless connection to Pentair control box
- + Direct replacement for discontinued IC20
AI-assisted summary of a verified Amazon customer review.
· April 12, 2026 · United States
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Easy Install, Auto-Calibrating, Works with Prior Power Supply
This replacement salt cell installs easily, fits well, and shows high build quality with no leaks. It appears likely to last a long time. Used to replace a leaking iChlor 30, it performs much better: it automatically detects the salt PPM and adjusts chlorine output accordingly, keeping water crystal clear. It also works with the power supply from the previous unit, saving money.
Pros
- + easy installation
- + perfect fit
- + high quality
- + no leaks
- + likely good longevity
- + auto-detects salt PPM
- + adjusts chlorine output
- + crystal clear water
- + works with prior power supply
- + saves money
AI-assisted summary of a verified Amazon customer review.
· November 19, 2025 · United States
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Effective Salt Cell With Competitive Pricing
These Pentair salt cells perform well and work as expected. Occasional replacement is required over time. Pricing is competitive and significantly lower than buying locally. A solid option for pool maintenance.
Pros
- + Works great
- + Competitive pricing
- + Cheaper than local purchases
Cons
- − Requires occasional replacement
AI-assisted summary of a verified Amazon customer review.
· May 25, 2026 · United States
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Faults Out After an Hour of Use
Purchased last fall, but cold temperatures prevented chlorine production, so it stayed boxed until two weeks ago. It replaced a discontinued IC20 and fit properly, yet it faults out after about an hour of use with a check cell message. Cleaning with a 4 to 1 water and muriatic acid mix resets the fault light briefly, from an hour to a few hours, before the same check cell message returns. A different brand of chlorinator is being sought.
Pros
- + Fits as a replacement for a discontinued IC20
Cons
- − Faults out after about an hour with a check cell message
- − Cleaning only resets the fault temporarily
- − Cold temperatures prevent chlorine production
AI-assisted summary of a verified Amazon customer review.
· March 25, 2026 · United States
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Easy Replacement Salt Cell with Reliable Performance
This salt cell serves as a replacement for a failed IC20 unit. Installation is straightforward, comparable to routine salt cell cleaning. Although shorter than the IC20, a included coupling ensures a proper fit, making it plug-and-play with no extra parts required. After about a month of use, performance remains consistent, water quality is excellent, and chlorine levels are accurate. It is a reliable, easy-to-install option for replacing a worn-out IC20.
Pros
- + easy installation
- + plug-and-play
- + includes coupling for proper fit
- + consistent performance
- + accurate chlorine levels
- + good water quality
AI-assisted summary of a verified Amazon customer review.
· October 10, 2025 · United States
Read original on Amazon ↗
