Safe-T-Cover - Backdraft Damper 10mil The 800D-AL enclosure is easy

The 800D-AL enclosure is easy to set up

Each 86 lbs mat can be carried by 1-2 people and put into position without special tools

The mats have overlapping flanges with an interlocking design and a secure connection system

Energy Efficient & Self-Regulating - The electrical resistance of the heat trace tape varies with temperature

The 300T-AL enclosure is easy to set up

Safe-T-Cover - Backdraft Damper 10mil The 800D-AL enclosure is easyThis 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