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Filter Cartridges

Replacement filter cartridges for pools, spas and hot tubs.

If it is time to replace your swimming pool or spa filter cartridge you have come to the right place. We have a huge selection of filter cartridges by top manufacturers including Unicel, Pleatco, Filbur and Aladdin. We make finding your filter cartridge easy. Simply search below by your filter cartridge outside diameter or OEM manufacturer. Please feel free to Contact Us if you have any trouble locating your replacement filter cartridge.

Filter Cartridges
   
SEARCH BY OUTSIDE DIAMETER: SEARCH BY ORIGINAL EQUIPMENT MANUFACTURER:

   

  

 

MEASURING YOUR FILTER CARTRIDGE
All measurements should be in inches. Please be sure to be as accurate as possible with all your measurements to assure a proper fit. Measurements should be within 1/16 of an inch.
 
Filter Cartridge Measurements1. Measure the outside diameter of your filter cartridge (measurement A).

2. Measure the length of the your filter cartridge (measurement B). Measurements should include the end caps but do not include any handles, threads, etc.

3. If your filter cartridge has an opening in the top and/or bottom measure the diameter of the opening.

4. Please view our end cap images to be sure the filter cartridge you are ordering has the correct end cap configuration.

5. If possible, also attempt to match up any part #'s that may be on your old filter cartridge.

6. If you are still having trouble locating your filter cartridge please Contact Us.

   
HOW DO I KNOW IF IT IS TIME TO REPLACE MY FILTER CARTRIDGE?
Since Filter Cartridges have no moving parts or electrical switches to fail, Filters Cartridges do not have a defined end-of-life. Instead the cartridge media will gradually plug up over time.

In a typical spa, the culprit that plugs the cartridge media is perspiration and body oils combined with soaps, chemicals and very fine particulate. In a swimming pool, the loading is primarily debris along with suntan lotions and organic matter such as algae.

Assuming the Filter is properly maintained and correctly sized to the pump, determining when the Filter Cartridge is in need of replacement depends primarily upon three factors:

  1. Shorter cycle time between cleanings.
  2. Low water flow rate and high differential pressure.
  3. Catastrophic failure such as a tear in the media or center core collapse.

All three are dependent upon proper swimming pool or spa water chemistry and following a routine maintenance schedule. Filter elements are plastic and should be handled and maintained accordingly.

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