Dayton 4c555 10x22 Backdraft Damper/Wall SHUTTER, 10-1/2x22x10-1/2x22 Opening XPN8_L4QIA42

This model is a rear flanged general purpose exhaust shutter. The blades have a galvanized steel reinforcement strip across the top of each blade for added strength and counter balancing efficiency. The blades also feature a felt seal on the leading edge for quiet closing and better protection from the weather. This shutter is ideal for use with direct-drive or belt-driven exhaust fans.