KVM Tools 4C556 12 in Backdraft Damper / Wall Shutter, 12-1/2 in x 12-1/2 in 10D912 AC Frequency Response 36 KHz

AC Frequency Response 36 KHz to 42 KHz

Standards ASTM B117

The high-efficiency stainless steel finger valves in the air compressor are efficient and easy to maintain

Overall Length 48 in

Grade 18-8

KVM Tools 4C556 12 in Backdraft Damper / Wall Shutter, 12-1/2 in x 12-1/2 in 10D912 AC Frequency Response 36 KHz15 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