2" Round Horizontal/Vertical Mount Fire Damper 2550-22 Smoke-Fire Damper Modern step-down design with 4-way

Modern step-down design with 4-way air diffusion

For damper free area chart A click here * 2563 - Out-of-Airstream fire door

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 24" Duct Opening (front blades parallel to shortest dimension)

T-Bar Modular Core Diffuser with Round Collar 18-20

Tamper-proof Screws

2" Round Horizontal/Vertical Mount Fire Damper 2550-22 Smoke-Fire Damper Modern step-down design with 4-wayStandard 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