Aqua Kleen AK-40042 45 sq. ft. Unicel Replacement Filter Cartridge for Pool and Spa<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Industry's most complete line of replacement filter elements</li><li>Dynasty spas</li><li>Garden Leisure</li><li>Leisure Bay spas</li><li>Pentair pool prod - rainbow plastics (R173584)</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41VyMXL0ODL.jpg" noproxy>