3. Search by filter dimensions
This method takes a little more time and effort on your part, but it usually works. First, you will need one of your old filters and a tape measure. We'll wait here while you get them.
Okay, ready? First measure the
diameter of the filter. Then measure the
length. When you measure the length, ignore any of the bits sticking out of either end of the filter - it's just the body of the filter, not the handles or any screws or anything. You can often find the right filter just with those two measurements. Keep in mind that plus or minus a few millimeters is no big deal.
