20x20x5 Trion Air Bear Replacement Furnace Air Filters by Aerostar - Merv 8, Box of 2

Nominal Size: 20 X 20 X 5, Actual Size: 19 3/4" x 20 5/8" x 5" Comparable to Filtrete MPR 600 Dust Reduction Replaces Air Bear Part Numbers: 229990-103, 248713-104, 455604-001, 455604-019 Replaces Skuttle Part Number: DB-20-20, 448-3 Change Frequency 12 months. Made in the USA