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Maintains horizontal airflow pattern
Front blades are parallel to the shortest dimension
Narrow ceiling grid dimples for 9/16" T-Rails
w/ Steel Opposed Blade Damper
2" Round Horizontal/Vertical Mount Fire Damper 2550-24 Step Down Ceiling Diffuser Maintains horizontal airflow patternStandard Features Spring actuated curtain type fire damper with 2 1 4" round connection for horizontal or vertical mount 2" thin line roll formed out of airstream frame Designed for use in walls, floors and partitions with fire resistance ratings of 2 hours or less (for ceiling application, see 2700 series) UL listed and tested in accordance with UL Standard 555 1 1 2 hour fire resistance rating Building materials rated 2 hours or less CSFM California
US$ 129.75
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