50 Sq Ft Pool Spa Filter Cartridge, 20 In, Easy Clean

Pool filter cartridge replacement keeps spa and hot tub water clearer by trapping fine debris while maintaining steady flow. Built with trilobal pleated filtration fiber for strong dirt-holding capacity and lower resistance, it supports efficient pump operation and consistent backpressure. Reinforced PA+GF end caps and a rigid internal support core help the cartridge hold its shape through repeated cleanings, making routine maintenance faster and more predictable.

• Delivers up to 50-micron filtration to capture hair, leaves, dust, and fine particles for cleaner-looking water.


• Fits many 50 sq ft cartridge filter housings with 20 in length, 7 in outer diameter, and 3 in inlet/outlet diameter.


• Includes trilobal pleated media designed for high permeability, helping reduce flow resistance and support efficient circulation.


• Resists wear with PA+GF end caps and reinforced center support to help prevent collapsing and bypass.


• Simplifies upkeep—rinse to refresh performance and extend service life between replacements.

When water starts looking dull or the system pressure creeps up, swapping in a fresh cartridge is the fastest fix. This compatible, third-party replacement is designed for 50 sq ft filtration systems commonly used in pools, spas, and hot tubs, balancing fine filtration with reliable flow. Keep an extra on hand for quick change-outs during peak season and maintenance days. Grab yours today and get back to clear water with less downtime.

• Filtration area: 50 sq ft (1 cartridge)


• Filtration precision: <50 μm


• Dimensions: 20 in height; 7 in outer diameter; 3 in inlet/outlet diameter (approx. 7.6 cm)


• Media: Trilobal pleated high-efficiency filtration fiber; fabric weight 100 g/m² (3 oz)


• Construction: PA+GF end caps; transparent plastic internal support


• Pleat count: 113


• Certifications: NSF/EPA certified


• Net weight: 1.3 kg (2.87 lb)