CV340 Pool Filter Cartridges Replacement for Jandy CL340, CV340, Replace Pleatco PJAN85, Jandy R0554500, Unicel C-7459, Filbur FC-6405, 4×85 sq. All manufacturers’ names and part numbers are used for compatibility information only. Compatible with Jandy CL340, CV340, R0554500, A0557900, Pleatco PJAN85, Unicel C-7459, Filbur FC-0800, etc. NSF/ANSI 50 Certified: Tested and certified by NSF International against NSF/ANSI 50 for the use of safe materials. The trilobal pleated design captures 3x more debris than regular fabric, efficiently trapping leaves, hair, sand, and oils for cleaner water. 27″; Outer Diameter: 7″; Top Opening Size: 3″; Bottom Opening Size: 3″. These proper dimensions ensure easy installation into your filter without any concerns about compatibility or leaks. Extremely Enduring: Features spunbond polyester and a strong inner core, making it capable of withstanding high-pressure water flow and enduring enough to be a worthwhile investment for your pool. Economical Pool Maintenance: Regularly cleaning and reusing the filter cartridge is a simple way to minimize water usage. We recommend cleaning the cartridge monthly to maximize its effectiveness and ensure a clean swimming experience.