Return Air Grille 1075-30X16 Accessories Opposed Blade Damper standard on

Opposed Blade Damper standard on 4" widths

Available in even sizes 6" to 20" and 24"

TVB - Thermal Vapor Blanket

Back blades are parallel to the longest dimension

Return Air Grille 1075-30X16 Accessories Opposed Blade Damper standard onStandard Features * 1 2" spacing dual angular louvers * 22 & 20 gauge cold roll steel * Mullions are reinforced with stiffeners for greater strength * For applications where greater air volume is required * Install with louvers in up or down position for best duct concealment * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * Tamper proof screws * Standard Color, Designer Color or