Merv rating: 8;Moisture resistant die-cut frame;Metal pleat backing

• NaturalAire Pre-Pleat 40 Air Filter, MERV 8, 20 x 20 x 1-Inch,
• 20" x 20" x 1"

NaturalAire Pre-Pleat 40 Air Filter, MERV 8, 20 x 20 x 1-Inch,Flanders Corporation