Pleatco PFAB75-4 Pentair / Pac Fab Seahorse 75; 300， (4 required) ( Stainless Steel Tank) Sea Horse FSH-300 (Fiberglass Tank)， 1 Cartridge<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Replacement filter for pool and spa cleaning systems</li><li>50% open ABS free flow cores maximize water flow through REEMAY filter media</li><li>Antimicrobial end caps resist chlorine degradation and provide support to filter material for a longer life span</li><li>18-7/16-by-2-5/8-by-2-5/8-inches</li><li>Made in the USA</li></ul></div><img src="http://ecx.images-amazon.com/images/I/412IFy-ZvYL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41lH57crlLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/413%2BZdnCriL.jpg" noproxy>