Replacement compatible with Bryant / Carrier Infinity GAPBBCAR2020 GAPBBCAR2020, GAPCCCAR2020, GAPAAXBB2020, GAPABXCC2020 and GAPABXBB2020 MERV 15 rating helps to reduce pollen, dust, pet dander, mold spores, dust mites, viruses, bacteria, and other airborne allergens Alleviates allergies and sinus irritations Recommended to replace once a year under normal conditions, or more often under harsh air conditions Nominal size 20 x 20 x 3.5 Actual Size: 20.91 x 21.5 x 3.5 Filter-Monster branded replacement compatible with Carrier Infinity GAPBBCAR2020 and select compatible units by Bryant, Payne, Day-Night, Honeywell, Space-Gard, and Trion air purifiers. It can also be used in any air conditioner, air cleaner, or furnace that requires a 20" x 20" x 3" HVAC/furnace filter.