3 Hour Radiation Damper - 2701 Size:20 x 4 14" and 16" * Perforated

14" and 16" * Perforated face with concealed hinges * 2x2 galvaneal steel panel with seismic support hangers * Soft White Options * Field installable Bowtie Damper (BD) (sizes 6-14") * 780 OR - factory installed opposed radial damper (sizes 6"-14") * 780 FR - U

1/4" cross bars

700 CB30 - three way

Standard Features * Extruded aluminum construction * 45 fixed blades parallel to longest dimension * Margin edges are 7/8" projection for baseboard installation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 1100FF - flush frame * Fractional and odd dimension sizes * Standard Color

3 Hour Radiation Damper - 2701 Size:20 x 4 14" and 16" * PerforatedStandard Features Square or rectangular ceiling radiation butterfly damper Designed for protection of ceiling openings in fire rated floor ceiling assemblies with fire resistance ratings of 3 hours or less UL listed and tested in accordance with UL Standard 555C 3 hour fire resistance rating Building materials rated 3 hours or less CSFM California State Fire Marshal listed Zinc plated steel closure spring All steel parts with galvanized finish or zinc