I have 2 one is a open box but new sealed cartridge and 1 unopened box. This Pleatco swimming pool/spa replacement filter cartridge is designed for advanced point bonded filtration fabric, providing superior filtration for your pool. It fits Hayward C500, C550, and Purex CF-50 models, and replaces Unicel C-7656 and Filbur FC-1240 cartridges. The cartridge type is a cartridge filter, with a width of 7 inches and a height of 19 3/4 inches, including an inner opening diameter of 3 inches.

This filter cartridge is suitable for both above ground and in-ground pools, and is sold in a unit quantity of 2. The brand is Pleatco, a trusted name in pool equipment and parts. Whether you're looking to replace your old pool filter or upgrade to a more advanced filtration system, this Pleatco filter cartridge is an excellent choice.