Hart & Cooley® Sidewall Supply Register with Multi-Louver Damper, Series: 683M, 1/2 in Grille Spacing, 3-Way Deflection, 90 cu-ft/min at 1000 ft/min, 0.09 sq-ft Area, Steel, Enamel, Bright White, 8 x 4 in
| Grille Spacing | 1/2 in |
| Series | 683M |
| Size | 8 x 4 in |
- All steel construction with metal handle
- Stamped, one piece face with multi-louver damper for volume control
- Fins spaced on 1/2 in centers at 40 deg
- Integral multi-shutter damper
- Sizes offered vary by face style
- 12 months warranty