Intex Pool Easy Set Type B Replacement Filter Pump Cartridge (6 Pack) | 29005E Built with durable Dacron filament media Intex recommends replacing this filter cartridge as often as every two weeks for optimal pump performance Shrink wrapped with original factory labels Reuseable filter optional after a hose down cleaning and wouldn't need to be replaced until it shows signs of wear or deterioration 63 Pleats w/ approx. 13.5 sq. ft of filter media