Dayton Stationary Intake Louver, 48H x 48W Min. Wall Opening, 12, 195 cfm Louver Max. Exhaust

Designed to protect air intake and exhaust openings in exterior walls. 4" deep channel style frame and .090" thick extruded aluminum drainable fixed louver blades channel water away from the blades and down the jambs, eliminating water cascading from blade to blade. Includes 1/2" flattened aluminum birdscreen in removable frame mounted on interior. Unit also comes with a flange kit that speeds installation by eliminating the need for site-fabricating flashing, while providing weather protection by covering small gaps in installations. Presized aluminum extrusion construction with prepunched mounting holes; mounting hardware included.