Model:PFL-D-4 4" Deep, Drainable, Extruded Aluminum
APPLICATION The Model PFL-D-4 is a 4" deep drainable extruded aluminum louvered penthouse. When AMCA certified the louvers in this penthouse allowed less than .01 oz/sq.ft. at 1250 fpm (test limit) and still had a free area above 50%.