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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).

Pool Filter Cartridges - Swimming Pool Filter Replacement Cartridges

Ensuring that you always have a properly functioning filter cartridge will help to keep your swimming pool clean and to extend the lifespan of your pool's pump. When it comes time to replace your cartridge, Specialty Pool Products offers an extensive selection of pool filter cartridges so you can always find just what you need.

We offer a wide array of different types of swimming pool filter cartridges including castle top, closed top and step pool filter cartridges as well as injected molded knob handle cartridges and many others. Our replacement pool filter cartridges fit all the major brands of filter systems, including Hayward, Pentair, Jandy and many more.

With the help of our online search function you can easily and conveniently search our website for exactly the type of filter cartridge you need. With our online search tool you can search for pool filter cartridges either by outside diameter, original equipment manufacturer or by a Filbur, Pleatco, or Unicel number. Either way, these search capabilities will allow you to easily navigate through our extensive selection of pool filter replacement cartridges.

No matter what type of filter cartridge you may be looking for, you will always find a great deal at Specialty Pool Products. All of our replacement pool filter cartridges are affordably and competitively priced so you can enjoy high quality products as well as excellent value. On our website, we also provide cartridge cleaning instructions and a troubleshooting guide to help you get the best use out of your swimming pool filter cartridges.

When you need replacement pool filter cartridges, there are many great reasons to turn to Specially Pool Products, including:

  • Pool filter cartridges for all the major brands including Hayward, Pentair, Jandy & more
  • Thousands of pool filter cartridges in stock and ready to ship
  • Many different types of pool filter cartridges to choose from
  • Replacement pool filter cartridges available for all swimming pools and spas
  • Online resources for filter cleaning and troubleshooting
  • Convenient and easy to use online search tool
  • Quality customer service
  • Economical prices and outstanding value
  • Free shipping

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