It is important to change the PC17-4 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.
23 sq. ft. | 6-3/4 in. x 17 in. | Top & Bottom End Cap (Inside Diameter) 3-1/16 in.
Note: It is standard for measurements to vary by as much as 1/8 in.
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