It is important to change the PIN3 pool filter cartridge when the fibers of the pleats become worn, and difficult to clean. A clean pool filter cartrige is necessary for clean, sparkling, healthy swimming pool water.
3 sq. ft. | 3-1/16 in. x 3-13/16 in. | Top & Bottom End Cap (Inside Diameter) 1-1/16 in. SOLD AS 6 PAIRS
Note: It is standard for measurements to vary by as much as 1/8 in.
Compatible with:Type E | 58621 | PIN3PR | C-3302 | FC3751