Pleatco PA120 Pool Filter Cartridge – 120 sq ft

Part # PA120 — a premium replacement cartridge filter designed for many residential and commercial pool filtration systems requiring a 120 sq ft element. This cartridge restores filtration efficiency and helps keep pool water clear by trapping fine particles, dirt, and debris.

Key Features

• 120 sq ft of pleated polyester filter media — high capacity for extended run times between cleanings.
• Outer diameter approximately 8-15/16″, length approx. 23-1/4″ — fits filter housings sized for large cartridge elements.
• Open-top and open-bottom configuration with 4″ inner diameter ports for straightforward installation and good flow.
• Durable end caps and reinforced core designed to withstand pool chemicals and repeated cleanings.
• Wide compatibility — suitable as a replacement for many 120 sq ft cartridges used in filters from various manufacturers.

Typical Applications

Used in pools with moderate to heavy bather load or environmental debris, especially where larger volume or higher flow filters are required. Replace when the existing cartridge shows signs of clogging, flattening, collapse, or inability to maintain proper flow and water clarity.

Installation & Compatibility Notes

Turn off the pump and relieve system pressure before servicing. Open the filter housing, remove the used cartridge, and clean the tank interior. Insert the Pleatco PA120 cartridge, ensuring the open ports seat properly. Reassemble the filter, restore water circulation, then prime and observe system pressure and flow to confirm correct installation.

Why Choose This Cartridge?

The PA120 offers a large filtration surface area, robust construction, and reliable flow — ideal for maintaining clean, clear water with less frequent maintenance. Its durable build and high capacity help extend filter life and reduce the frequency of cleaning or replacements.

Maintenance Tips

• Rinse the cartridge whenever system pressure rises about 8–10 psi above clean-start pressure.
• Deep-clean periodically to remove oils, fine sediment, and chemical residue.
• Inspect pleats and end caps for tears, cracks, or collapse — replace immediately if damaged.
• Keep a spare cartridge on hand to minimize downtime when cleaning or replacement is required.