Eden XLS-780 Replacement Cartridge for Jandy Industries CL 580, Pack of 4 Cartridges Industry leading Anti-Microbial Open Flow Corewhereby the filter retains structural strength, yet liquid will easily flow through the filter core. Premium Grade Media to guarantee filter function and durability. A proprietary Anti-Microbial resin end-cap is standard in all cartridges to resist long term hot and cold cycles, keep the filters rigid structure intact and provide a knife edge seal. Replacement Cartridge for Jandy Industries CL-580. Top End Cap Type/ID: 3, Bottom End Cap Type/ID: 3, Outer Diameter: 7, Length: 33, Sq. Feet: 145.