Method One: Look for the Part Number On the End-Cap
Method Two: Measure the Filter Cartridge
Measure the outside diameter of the cartridge.
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.
If the top and/or bottom is open, measure the inside diameter of the opening.
Method Three: Manufacturer Part Number
Make note of the manufacturer (OEM) and model number of the filter the replacement cartridge will be installed.
Take note whether or not there is a center core in center. Also count the number of pleats.
Note: Filter measurements may vary. Allow a variance of: +/- 1/16 in. or +/- 2 mmOrder Your Filter Cartridge