dayton 30" whole house fan premium ceiling truss shutter/ceiling shutter, 33" x 30" opening required cai - dayton these ceiling shutters fit flush in ceiling opening below whole-house fans. they feature tie rods at each side to assure a uniform opening when the fan is operating. also has white louvers with felted edges; louvers are reinforced with galvanized steel.<br /><br /> item: whole house fan premium ceiling truss shutter / ceiling shutter<br /> fits fan dia.: 30"<br /> shutter overall size: 35" l x 32" w<br /> shutter construction material: extruded aluminum frame and g-90 galvanized tie rods<br /> shutter opening required: 33" x 30"<br /> shutter free area: 5.162 sq. ft.<br /> shutter mounting position: horizontal<br /> shutter mounting location: ceiling<br /> shutter item: whole house fan premium ceiling truss shutter<br /> length: 35"<br /> width: 32"<br /> frame depth: 1-3/8"<br /> open depth: 5"<br /> flange width: 1-1/2"<br /> mounting hole size: prepunched<br /> max. velocity: 1500 fpm<br /> blade material: white painted aluminum<br /> for use with: 30" whole house fans<br /> number of panels: 1<br />