Jandy CL340 Replacement Filter
cartridge filter system · 4 cartridges
85 sq ft · 7″ OD × 26.9375″ long
Note: The Jandy CL340 requires 4 cartridges. Order accordingly.
| Pleatco | PJAN85 |
| Unicel | C-7459 |
| Filbur | FC-0800 |
Frequently Asked Questions
What filter cartridge does the Jandy CL340 use?
The Jandy CL340 uses the PJAN85 (interchangeable with C-7459). 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 Jandy CL340?
The Jandy CL340 uses a 85 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 Jandy CL340?
Turn off the pump and release pressure from the filter tank (open the air relief valve) before opening the housing. Remove the cartridges (the Jandy CL340 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.