PREMIUM QUALITY FRAMED BAFFLE TYPE GREASE FILTER W/HANDLES.;GALVANIZED, 20" X 20" X 2";Safe, dependable, positive flame barrier protection.;Seamless, smooth surfaces permit constant grease run-off;into hood collection troughs easily cleaned by soaking or;spraying, or in conventional dishwasher.;UL & MEA Approved.;First two numbers of size indicate vertical height. Second;two numbers represent horizontal width, both are nominal;dimentions.;Actual size of filters are 7/16" less than nominal. ;Actual thickness is 1-3/4".