About This

• Designed to fit a 10"W x 4"H hole; overall size is 11-1/4"W x 5-1/4"H
• All-steel construction; bright white finish; two-way deflection
• For heating or cooling; ideal for shallow duct installations
• 1/3" spaced fins set at 20 degrees; multi-shutter valve
• Interlocking valve louvers for positive shut-off