Please Note! Replacement Filter Only - Does NOT Include Housing Rated Air Flow - 2000 CFM Nominal Width 21" Actual Width 20-3/4" Nominal Length 24-1/2" Actual Length 24-1/4" Nominal Thickness 5" Actual Thickness 4-3/8" Pressure Drop at 800 CFM (in. W.C.): 0.070 Pressure Drop at 1000 CFM (in. W.C.): 0.090 Pressure Drop at 1200 CFM (in. W.C.): 0.120 Pressure Drop at 1400 CFM (in. W.C.): 0.150 Pressure Drop at 1600 CFM (in. W.C.): 0.190 Pressure Drop at 1800 CFM (in. W.C.): 0.230 Pressure Drop at 2000 CFM (in. W.C.): 0.280 Fits Model [*]XHF-E24 Media Air Cleaner Housing MERV 8 Rating Protech 540044 Replaces: PD540014 540014 540020
