Rectangular Fire Damper, 9-3/4x11-3/4 In.

Fire Damper, Rectangular, Mounting Type Dynamic, Vertical or HorizontalNominal Duct Width 12 In., Nominal Duct Height 10 In., Damper Depth 3-11/16 In., Recommended Retaining Angle 2TGH1, Material 22 ga. Galvanized SteelDamper Height 9-3/4 In., Damper Width 11-3/4 In., Fire Rated 1-1/2 hr., Free Area 0.528 sq. ft., Fusible Link 165 Degrees F, For Use With Low Pressure HVAC Systems, Standards UL Standard 555, NFPA 80, 90A and 101, IBC, CSFM, NYC MEA Life Safety DampersFire DampersDynamicSteel spring-assist closing.Accommodate airflow in either direction.Fire-resistance rating: 1-1/2 hr. Max. temp.: 165 F Curtain blade style NFPA 80 requires retaining anglesVelocity rating: 2,000 fpm Pressure rating: 4" wgUL, NFPA, IBC, MEA, CSFM