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Pleatco PA90 Replacement Filter Cartridge
Part Number: PA90
Description
A high-capacity 90 sq ft cartridge filter designed for use in residential pool systems. Built with Pleatco’s advanced filtration fabric and Free Flow core to deliver excellent filtration, lower pressure drop, and extended service life.
Compatibility & Fitment
- Outer diameter: approximately 8-15/16″.
- Length: approximately 17-3/8″.
- Top & bottom hole size: approximately 4″ open ends.
- Fits OEM cartridges including Unicel C-8409, Filbur FC-1292, Hayward Star-Clear Plus C-900 and Sta-Rite PXC-95.
- Use this cartridge when the original element is worn, pleats are damaged, pressure is elevated, or cleaning no longer restores flow.
Features & Specifications
- Filtration area: ~90 sq ft.
- Media: Premium spun-bonded polyester for high dirt holding capacity.
- Construction: Heavy-duty reinforced bands and antimicrobial end-caps for durability.
- Free Flow Core technology reduces resistance and helps enhance pump efficiency.
Installation Notes
Turn off pump and relieve system pressure. Open the filter tank, remove old cartridge. Clean interior, check gaskets and O-rings. Insert the PA90 cartridge, ensuring proper seating. Re-assemble tank, restore circulation and monitor system pressure to verify correct installation.
Maintenance Tip
Clean the cartridge periodically by hosing off debris and soaking in a cartridge cleaner when necessary. Replace when rinsing no longer restores pressure or when media is torn, discolored or collapsed. Replacing proactively helps maintain water clarity and extends equipment life.

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