Exhaust Filter, 12.72x12.72
Compact Axial Fan Grille, Radiator Connection 12 51/64 in, For Use With 3243/3244 Series, 353/424 cfm Fan, Fits Fan Shape Square, 12 51/64 in Height, 12 51/64 in Width, 1 in Depth, Frame Material ABS Plastic, Includes Foam Filter Mat, Standards CE, cUL Recognized, Type 12 Rated, UL, Fan Guard Mounting Side Exhaust.