Damper, Motorized, 20 In, Galvanized Steel

Motorized Damper, Single Panel, Power Open, Spring Return, Voltage 120/240, 60 Hz, Single Phase, For Fan Dia 20 In, Sq Opening Required 21 In, Free Area 2.053 Square-Ft, Max Velocity 3500 FPM, G90 Galvanized Steel, 14 Gauge Frame and 16 Gauge Blades, Mounting Position Horizontal or Vertical, For Use With Intake or Exhaust ApplicationsRequires 12 In High Roof Curb for Roof Mount Applications Motorized DampersStainless steel jamb seals keep out light, air, and moisture. Feature center-pivoting louvers for a full 90 opening. Welded-corner construction and factory-installed motors. Mill-finish extruded aluminum models have 0.125"-thick frames, and 0.08"-thick louvers. G-90 galvanized steel models have 14-ga. frames, 16-ga. louvers.Exhaust or supply Mount: horizontal or vertical Max. velocity: 3500 fpm