HBW 12 x 4 Duct Opening Size 3-Way Stamped Face Steel Ceiling/sidewall Air Supply Register - Vent Cover - Actual Outside Dimension 13.75 X 5.75
- The Listed size 12"x 4" is for inside duct opening measurement, actual outside dimension is 13.75" X 5.75".
- Stamped Face Steel Construction with 1/2" fin spacing for high air flow.
- Multi-shutter damper with easy handle to adjust desired amount of air flow.
- Individually shrink wrapped with card board pad in the back for extra protection.