• Corrosion resistant heavy gauge aluminum frame.
• Precision counterbalanced aluminum blades open easior, 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.
• Keeps out wind, rain and backdrafts when shutter is not in operation.
• New cam pulley operator-Provides long life to motor and corrosion resistant.
• Motor draws only 17 watts.
• WAAC models are center pivoted to open easier against house static pressures.
• Motors are available in 24v, 115v, 230v, 460v (specify voltage required).

Freight charges from Oklahoma City.