Safe-T-Cover - Backdraft Damper 10mil the water control sock is

the water control sock is versatile

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flat backs which provide full contact with the underlying surface

The 300T-AL enclosure is easy to set up

these mats offer consistent performance throughout your project

Safe-T-Cover - Backdraft Damper 10mil the water control sock isThis model is a rear flanged gravity supply (intake) wall shutter. The frame and blades are mill finish aluminum with a galvanized reinforcement strip on each blade for added strength and counter balancing efficiency. The blades have a felt seal on the leading edge for quiet closing and better protection from the weather. Recommended for vertical mount supply (intake) only. The blades will pivot at the bottom and fall with gravity to open. Spring