2" Round 3 Hour Vertical Fire Door 2565-34 Smoke-Fire Damper 1x2 T-Bar (8" x 20"

1x2 T-Bar (8" x 20" duct)

Standard Features * T-Bar lay-in panel with perforated face * 2x2 galvaneal steel panel with seismic support hangers * Round No Labor Collar attached to panel * Soft White Options * 105 P D - multi-shutter damper with hinged perforated face * 105 P O - opposed blade damper with hinged perforated face * TVB - Thermal Vapor Blanket * Square collar

inner dimension and outer dimension sizes available * Tamper proof screws * Standard Color

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 16" duct Opening  (front blades parallel to shortest dimension)

904 - Double Deflection Adjustable Aluminum Blade Grille For a 40" x 18" Duct Opening (front blades parallel to shortest dimension)

2" Round 3 Hour Vertical Fire Door 2565-34 Smoke-Fire Damper 1x2 T-Bar (8" x 20"h3. Standard Features * 2561 Square or rectangular fire door for vertical mount only. Maximum dimension 48w, 49h. For damper free area chart A click here * 2563 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. For damper free area chart B click here * 2565 Round fire door for vertical mount only. Available 4" thru 40" round. * UL and California State Fire Marshall approved * 2" thinline frame *