2" Round Horizontal/Vertical Mount Fire Damper 2550-18 Commercial Surface mount fixed blade grille

Surface mount fixed blade grille with airfoil blades at 0°

Building materials rated 2 hours or less

Fractional Sizes

055 T6 extruded aluminum * Square collar * For 22"x22" square duct * Soft White Options * 915 T O - opposed blade damper * No Labor Collar - square to round (2x2 only) * 1x2 panel (10"x22" duct) or 2x4 panel (22"x46" duct) * Satin Anodized Finish available on this product

½ × ½ × ½ Aluminum lattice

2" Round Horizontal/Vertical Mount Fire Damper 2550-18 Commercial Surface mount fixed blade grilleStandard 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