Tier1 Replacement for Aprilaire 16x28x6 Merv 11 Models 2400 Air Filter 2 Pack DESIGNED TO FIT: Fits air cleaner models Aprilaire/Space-Gard 2400, Honeywell F100F2002, F100F1012, F100B1016, F150E1026, F200E1029, Lennox BMAC-14C, Trion 455602-119, White-Rodgers ACB1400, ACM1400, ACM1400U and FR1400-401 ACTUAL SIZE: 15 3/8 inches (length) x 26 15/16 inches (width) x 6 inches (depth) HIGH EFFICIENCY FILTRATION: Merv 13 Rating to reduce airborne particles like dust, spores, pollen, pet dander, and more This product is not manufactured by or distributed by Research Products Corporation, owner of the registered trademarks APRILAIRE/ or SPACE-GARD 100% TIER1 NO WORRIES GUARANTEE - We stand behind the quality of filtration and overall performance of our Tier1 filters!