Keep your pool performing at its best by investing in Intex Pool Easy-Set Type A Replacement Filter Cartridges (2 Pack). Constructed 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 A Replacement Filter Cartridge and let it go to work for you.