Grease Filter Style - Air Filters Panel Rectangular Nominal Filter Size 20x20x2 Media Material Aluminum Air Filter Construction Baffle Frame or Header Material Aluminum For Use With (Systems) Type 1 Commercial Exhaust Hoods Filter Efficiency - Air Filters 65 Percent Removes Particles Down To 3.0 to 10.0 micron Air Flow @ 300 fpm 575 cfm Initial Resistance @ 300 fpm 0.79 in wc Max Temp 1 200 Degrees F Max Velocity 650 fpm Nominal Height 20 in Nominal Width 20 in