KVM Tools 4C556 12 in Backdraft Damper / Wall Shutter, 12-1/2 in x 12-1/2 in 10D912 Overall Length 48 in

Overall Length 48 in

For Use With Duplicating or Tracing Masters

Maximum Wall Thickness 0

AC Frequency Response 36 KHz to 42 KHz

Type Signaling Device Vibrating No Sound Pattern Continuous Standards UL S2635

KVM Tools 4C556 12 in Backdraft Damper / Wall Shutter, 12-1/2 in x 12-1/2 in 10D912 Overall Length 48 in15 In. H W 5. 75 In. L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 15 in, Rough Opening Diameter 12 1 2 in, Rough Opening Shape Square, Fits Fan Diameter 12 in, For Duct Shape Not Applicable, Free Area 0. 8 sq ft, Overall Width 15 in, Frame Material Thickness 0. 8 in, Overall Length 5 3 4 in, Connection Type