Return Air Grille 1075-10X18 Commercial Airfoil blades individually adjustable on

Airfoil blades individually adjustable on 3/4" centers

round collar only) * 830 OR - factory installed opposed radial damper (sizes 6"-14") * 830 FR - U

Installation Ring only

Building materials rated 3 hours or less

Return Air Grille 1075-10X18 Commercial Airfoil blades individually adjustable 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