Axial Fan Filter, Radiator Connection Not Applicable, For Use With SK 3237.7xx, Media Material Synthetic, Fits Fan Shape Round, 4 9/16 in Height, 4 9/16 in Width, Diameter 6 3/4 in, 1 5/16 in Depth, Mounting Eye O.C. 2-3/8 in, Frame Material Plastic, PPI Rating 15-20, Includes Chopped-Fibre Filter Mat, Outlet Filter, Standards UL + C-UL - FTTA, UR + C-UR (Recognized)