Intex 3 x Filter Cartridge replacement Size A FILTER PUMP 29003INTEX Genuine 3 x Intex Filter Cartridge replacement Size AKeep your spa water clean and Intex PureSpa performing at its best by using genuine Intex PureSpa Type S1 Pool Filter Cartridges. It works with all Intex PureSpas models i Replace your filter cartridges regularly for the best results. It is recommended that you replace cartridges every 2 weeks Pack of 3 x genuine Intex Type A filter cartridges The A Cartridge Filter is sure to keep your Pool