How to find a replacement cartridge for your pool or spa?
Measure the outer diameter of the cartridge in centimeters, +/- 0.8 mm.
Measure the cartridge length in centimeters, +/- 1.6 mm, including end caps but excluding any handles or other extensions. We recommend measuring through the center (if possible) rather than along the outside edge.
Identify the end cap configuration of the cartridge. If the top and/or bottom is “open”, measure the inner diameter in centimeters, +/- 0.8 mm, of the top and/or bottom.
Record the OEM name and model of the filter from which the cartridge was removed (if possible).
Note whether there is a center core (PVC pipe in the center).
