Louvers Ruskin Model GFL800D Drainable Blade Extruded Aluminum Louver Penn Ventilation Brick Vent 4" Frame - 1" Deep 45° Step Blade Extruded Aluminum Accessories Optional Flange Kit 1 1/2" optional flange kit.
Louvers
Ruskin Model GFL800D Drainable Blade Extruded Aluminum Louver
Penn Ventilation Brick Vent 4" Frame - 1" Deep 45° Step Blade Extruded Aluminum
Accessories
Optional Flange Kit 1 1/2" optional flange kit.