Dampers, Shutters and Louvers → Model GFL Soler & Palau USA brand 4" Deep (Fixed Blade) Fresh Air Architectural Steel Wall Louver - 709 (FPM) Feet Per Minute Free Air Velocity Rating (Beginning Point of Water Penetration) Sizes 18" to 48"
Model GFL Soler & Palau USA brand 4" Deep (Fixed Blade) Fresh Air Architectural Steel Wall Louver - 709 (FPM) Feet Per Minute Free Air Velocity Rating (Beginning Point of Water Penetration) Sizes 18" to 48"