Description: 1. All-steel and grid face construction. 2. Opposed Blade Damper (OBD) design for both planes and equal air diffusion over entire register face. 3. Lever operated multi-louver damper provide exacting volume control. 4. Front and rear blades are set on 3/4” centers. 5. Oil Rubbed Bronze Finish standard 6. Size option: Customer’s sizes are available. 7. Countersunk mounting holes.