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Filter Cartridges

Find your Replacement Filter Cartridges Quickly & Easily!

- 1000s of Cartridges in Stock, for Every Pool & Spa
- Search by Diameter, Equipment Brand or Cartridge Model #
- Click Here for Filter Grids


Filter Cartridges

Use any of the three options below to find your Filter Cartridge, then click the 'Search' button for a great deal!

- Outside Diameter (O.D.) :
- Original Equipment Manufacturer (O.E.M.)
For example - Hayward:
- Filbur, Pleatco, or Unicel number (ex: FC-0121, PTL 18, 4CH-21):
See Results Below:


Filter Cartridges - Swimming Pool Filter Systems
How to find a replacement cartridge for your pool or spa.
A. Measure the outside diameter of the cartridge in inches. (+/- 1/16)

B. Measure the overall length of the cartridge in inches (+/- 1/16), including the end caps. Do not include any handles, strings, etc. A more accurate measurement is made by measuring through the center of the cartridge when possible.

C. If the top and/or bottom is open, measure the inside diameter of the opening (+/- 1/16 in.). Match the cartridge end cap configuration to a corresponding one in the complete end cap gallery.
D. Make note of the manufacturer (OEM) and model number of the filter the replacement cartridge will be installed in.

E. Take note whether or not there is a center core (PVC pipe in center). Also count the number of pleats (+/- 2).

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