The END CAP helps to provide structural support and increase filter cartridge durability. Unlike most other filter cartridges manufactured for the pool & spa marketplace, Pleatco Filter Cartridges have end caps that are 100% Antimicrobial and the Pleatco PART NUMBER is boldly molded into the end cap for quick and easy identification.

A. Measure the outside diameter of the cartridge.

B. Measure the overall length of the cartridge 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.

Then give us a call at 800-876-7647 and we can get you the correct replacement filter.