Premium Quality Framed Baffle Type Grease Filter W/Handles. Galvanized, 10" 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".