Darlly 91508 155 Sq. Ft. Pool Filter Cartridge – Astral / Fluidra ZX310

The 155 sq. ft. replacement cartridge is a strong, long-lasting replacement filter cartridge. Single cartridge has 155 sq. ft. of filtration capability Crafted of the highest quality materials ZX310 replacement cartridge Hint: Keep an extra filter on hand so that when its time to clean your filter, you will be able to replace it immediately with the back-up. This will allow you the time to leisurely deep clean your dirty filter and allow it to dry completely before replacing it without any downtime on your pool. *Never use a power washer to clean your filter. Dimensions: Length: 17.125" Outer Dimension: 9" Inner Diameter (Top): 3" Inner Diameter (Bottom): 3"