Pentair Clean & Clear Plus 420 Replacement Filter
cartridge filter system · 4 cartridges
105 sq ft · 7″ OD × 26.0625″ long
Note: The Pentair Clean & Clear Plus 420 requires 4 cartridges. Order accordingly.
| Pleatco | PCC105 |
| Unicel | C-7471 |
| Filbur | FC-1977 |
Frequently Asked Questions
What filter cartridge does the Pentair Clean & Clear Plus 420 use?
The Pentair Clean & Clear Plus 420 uses the PCC105 (interchangeable with C-7471). Confirm the correct quantity in your owner's manual - the filter housing may also have a label indicating the part number.
How often should I replace the cartridge in my Pentair Clean & Clear Plus 420?
The Pentair Clean & Clear Plus 420 uses a 105 sq ft cartridge, which most homeowners replace every 12-18 months under normal residential use. Clean it every 2-3 months by rinsing between the pleats, and deep-clean quarterly with a filter-cleaning solution. Replace it when cleaning no longer brings the pressure back to baseline.
How do I clean the filter cartridge in a Pentair Clean & Clear Plus 420?
Turn off the pump and release pressure from the filter tank (open the air relief valve) before opening the housing. Remove the cartridges (the Pentair Clean & Clear Plus 420 uses 4) and rinse thoroughly with a garden hose, directing the stream at a 45-degree angle between the pleats. For a deeper clean, soak overnight in a pool filter cleaner solution, then rinse completely before reinstalling. Never use a pressure washer - it collapses the pleats and permanently reduces filtration.