IBD2

Ruskin Model IBD2 can be installed vertically in walls or horizontally in floors with fire resistance ratings of less than 3 hours.
The IBD2 carries a 11/2 hour UL fire damper label and is classified as a static damper for use in HVAC systems that shut down during a fire.
Ruskin Model IBD23 can be installed vertically in walls or horizontally in floors with fire resistance ratings of 3 hours or more. The IBD23 carries a 3 hour UL fire damper label and is classified as a static damper for use in HVAC systems that shut down during a fire.

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