Aerostar 16x20x4 1/4 MERV 11, Carrier Replacement Pleated Air Filter, 16x20x4 1/4, Box of 2

Nominal: 16 X 20 X 4-1/4, Size: 15 1/2"x19-7/8"x4-1/4" 16x20x4 1/4, AC Furnace Air Filter Comparable to Filtrete MPR 1000 to 1200 Micro Allergen Defense Replaces Bryant/Carrier Part Numbers: FILCCFNC0017, FILBBFNC0017 Replaces Lennox Part Number: X0582 Change Frequency 12 months. Made in the USA