Pool Filter Cartridge 4-Pack, 105 Sq Ft, 50 Micron

Pool filter cartridge replacement set helps keep pool and spa water clearer with consistent 50-micron filtration that captures debris before it clouds your system. This 4-pack delivers 4 x 105 sq ft coverage (420 sq ft total) with trilobal pleated filtration fiber for strong dirt-holding capacity and steady flow. Reinforced PA+GF end caps and a supported core are built for repeated cleaning cycles, reducing downtime and keeping maintenance simple.

• Delivers 50μm filtration to trap hair, leaves, dust, debris, and fine particles for cleaner water


• Includes 4 cartridges at 105 sq ft each (420 sq ft total) to restore full filtration area fast


• Fits compatible systems referencing Pentair CCP420, Pleatco PCC80-PAK4, Unicel C-7471, Filbur FC-1977 and more


• Resists wear with PA+GF end caps plus reinforced center support for stable performance across cleanings


• Simplifies upkeep with easy-rinse pleats designed for repeated use and quick performance recovery

When your water turns dull or your pump works harder, a fresh pool/spa cartridge set is the fastest fix without changing the whole filtration system. These compatible replacement cartridges use high-permeability trilobal media to support efficient circulation while improving dirt capture and backpressure stability. Ideal for regular maintenance cycles and seasonal refreshes—keep a spare set on hand to swap in and get back to clear, usable water with less interruption. Grab yours today.

• Pack size: 4 cartridges


• Filtration area: 105 sq ft each; 420 sq ft total


• Filtration precision: 50 microns (μm)


• Dimensions: 26 in length; 7 in outer diameter; 3 in inner diameter (approx.)


• Filter media: Trilobal pleated high-efficiency fiber; 181 pleats


• End cap material: PA+GF


• Core/support: Transparent plastic internal support


• Fabric weight: 100 g/m² (3 oz); thickness 0.39±0.03 mm


• Reference compatible models: Pentair CCP420; Pleatco PCC80-PAK4; Unicel C-7471; Filbur FC-1977; 178584; 817-0106; R173576; FC-1977; 570-0425-07 (reference only; third-party compatible)