INTEX 29001E PureSpa Type S1 Easy Set Pool Filter Cartridges， 6 Filters<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Genuine INTEX type s1 filter cartridges</li><li>A pair of s1 cartridge filters are sure to keep your pure spa jet massage water clean and fresh</li><li>It is made with easy-to-clean， heavy duty Dacron paper， for the ultimate filtration</li><li>For maximum efficiency， clean cartridges each week and replace at least once a month</li><li>Manufacturer item : 29001E</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51CEK9ywktL.jpg" noproxy>