1pack Dayton 2TGF1 Rectangular Fire Damper 5-3/4x11-3/4 In.

1pack Dayton 2TGF1 Rectangular Fire Damper 5-3/4x11-3/4 In. Fire Damper Fire Damper Rectangular Mounting Type Dynamic Vertical or Horizontal Nominal Duct Width 12 in Nominal Duct Height 6 in Damper Depth 3 11/16 in Material 22 ga Galvanized Steel Damper Height 5 3/4 in Damper Width 11 3/4 in Recommended Retaining Angle 2TGG8 Fire Rated 1 1/2 hr Free Area 0.274 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