Motorized Hat Channel Damper, 100-240V, DAYTON, Mfr# 5NKK7

41.8 In.H-W 14.5 In.L Squ Mtrzd Contrl Dampr, For Nominal Duct Diameter 42 in, Damper Application Motorized, Number of Panels 1, Overall Height 41 3/4 in, Overall Length 14 1/2 in, Rough Opening Shape Square, For Duct Shape Square, Overall Width 41 3/4 in, Frame Material Thickness 14 ga, Blade Material Galvanized Steel, Maximum Air Pressure 4 in wg, Rough Opening Length 42 in, Rough Opening Width 42 in, Maximum Air Velocity 3500 fpm, Nameplate Voltage 100/240V AC