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Choose a sub category:
9IN TO 9-15/16IN O.D. 8IN TO 8-15/16IN O.D.
7IN O.D. 7-1/8IN TO 7-7/8IN O.D.
6IN To 6-7/8IN O.D 5IN TO 5-7/8IN O.D.
4IN To 4-15/16IN O.D. 2IN To 2-7/8IN O.D.
10IN To 10-7/8IN O.D.

Replacement Pool Filter Cartridges

Carefully measure the outside diameter (O.D.) of the top cap and the total length of the cartridge. Note that a measurement of 5" might actually be 4-15/16", so you may look at more than one category when the dimensions are right at the inch.

Example of measuring your cartridge element to match the category you need:

Cartridge Overall DiameterCartridge Length

Can't find your replacement pool filter cartridge? Call us at 1-800-301-3945 for one on one customer assistance. We have over 400 sizes in stock!