Merv 16 Air Filter 20x25x5Compatible Models: lennox 6675 20x25x5, lennox HCF20-16,HCC02-28 HCXF20-10 F25A1068, F25F1067, F35F1024, F100F1038, F150E1034, F200E1037 ;Carrier: EZXCAB020, MACA020, MPKA020, FILCAB020 ; trion air bear: 453000-001, supreme 2000, 455602-001, 447380-002Package: 2 Pack 20x25x5 filter replacementThe actual dimensions: 19.7 x 24.6 x 4.3 In Tips: It is recommended to replace every 8-12 months depending on the usage and environment.Easy to install1.Start by turning off the ventilation system and opening the vent to reach the filter.2.Then, gently remove the old filter.3.Ensure that the arrow on the new filter points in the same direction as the system airflow.4.Installation completed