18 In. Automatic Metal Shutter for Gable Mount Power Attic Ventilators Part_Switches and Controls This rear grille is powder-coated

This rear grille is powder-coated in a black finish for durability and is fastened to the front grille using a grille ring with a set screw

and non-skid

This motor is compatible with fan models beginning in BF36DD

Many local codes require the installation of a ceiling radiation damper to protect the bath fan opening against the spread of heat and fire through the ductwork

Energy-saving DC motor

18 In. Automatic Metal Shutter for Gable Mount Power Attic Ventilators Part_Switches and Controls This rear grille is powder-coatedAdd our automatic shutter to finish your install of standard, solar, and premium series Maxx Air gable mount ventilators in your home if you are not installing behind existing louvers. Each aluminum louver is individually padded with felt for an extremely quiet operation. No special tools are required for installation and the frame has pre punched holes to secure it in your attic space with zero hassle. This exterior shutter automatically opens and