Product details:

It fits Carrier/Bryant Infinity air cleaner model Gapabxcc2020. Nominal size is 20 x 20 x 3 1/2 (Actual Size 20 3/4 x 20 1/2 x 3 5/8). This filter usually needs to be changed once per year under normal conditions. This product is listed and rated by Underwriters Laboratories as U.l. Class 2. Note: All Carrier/Bryant Infinity filters are interchangeable.