Features and Benefits:Made in USA;20 x 20 x 2", MERV 8, 35% Efficiency, Wire-Backed Pleated Air FilterSpecsFilter Type Wire-Backed PleatedNominal Height (Inch) 20Nominal Width (Inch) 20Nominal Depth (Inch) 2Particle Capture Efficiency (%) 35MERV Rating 8Media Material SyntheticIntegrated Frame YesActual Height (Inch) 19-1/2Actual Width (Inch) 19-1/2Actual Depth (Inch) 1-3/4Maximum Air Flow (FPM) 500CFM 1050Initial Resistance at FPM (Inches w.g.) .20 (at 500 FPM)Final Resistance at FPM (Inches w.g.) 1Maximum Temperature (F) 200Capacity StandardPleats Per Square Foot 10Frame Material PaperboardFor Use With Any UnitStandards Met ASHRAE 52.2-2012; UL 900