Poolmaster 12724 Replacement Filter Cartridge for Easy Clear CX-550 CX550RE Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Equivalent to the following replacement filter cartridges; Pleatco PA55 and Unicel C-7455</li><li>The top of the replacement filter cartridge is open 3 molded gasket and the bottom is open 3 molded gasket</li><li>Break-resistant bands keep pleats separated for greater flow， filtration and add longer life to cartridge</li><li>High quality spun bonded polyester material for exceptional water filtration</li><li>Premium grade polyurethane and plastisol end caps</li></ul></div><img src="http://ecx.images-amazon.com/images/I/415VSFw37mL.jpg" noproxy>