Stationary 2″ Outside Air Louver 4550 Extruded aluminum construction Standard flange frame 2″ depth DOCUMENTS DETAILS
Adjustable 4″ Outside Air Louver 4600 Extruded aluminum construction Standard flange frame 4″ depth DOCUMENTS DETAILS
Stationary 4″ Outside Air Louver Radius and Special Shapes 4700 Extruded aluminum construction Standard flange frame 4″ depth DOCUMENTS DETAILS
Extruded Aluminum Brick Vent (4″ depth) 4800 Storm resistant brick vent Extruded aluminum construction Standard channel frame DOCUMENTS DETAILS
Round Aluminum Vent Louver 4901 Lightweight aluminum vent louver Able to withstand wet and corrosive environments Mounting springs secure vent in duct DOCUMENTS DETAILS