Flo-Master Aluminum Wall Shutters

• Corrosion resistant heavy gauge aluminum frame.
• Precision counterbalanced aluminum blades open easier, wider to permit higher fan capacity.
• Nylon bearings throughout are corrosion proof to help prevent sticking. Suitable for dusty or humid applications.
• Stainless steel hinge pins will not rust, insure easy positive blade action.
• All shutter blades are reinforced with polished galvanized steel rods, and equipped with double tie – rods.
• Automatic – Used with exhaust fans, opens automatically when fan is on, closes automatically when fan is off.
• Keeps out wind, rain and back drafts when fan is not in operation.