Keep your pool clean and clear all season long 13.5 square feet of Dacron filament media with 63 pleats Intex recommends replacing this filter cartridge as often as every 2 weeks for peak pump performance Replaces Intex 29005E filter cartridge and fits any filter pump that uses Intex 59905 filter cartridges Extend the life of this filter by periodically hosing it down until it shows signs of wear and deterioration Spend more time enjoying your pool with peace of mind knowing you have a quality Intex Pool Easy Set Type B Replacement Filter Cartridge keeping it clean and clear all day. Constructed with 63 pleats made out of 13.5 square feet of high quality Dacron, this filter cartridge was designed to keep your Intex or other compatible filter pumps running longer and stronger. Replace this filter cartridge every 2 weeks for peak performance. For the long healthy life of your pool, invest in this quality Intex Pool Easy Set Type B Replacement Filter Cartridge and let it go to work for you.