Hart & Cooley 821 Supply Register, Adjustable, Vertical Fin, 80 cfm, 10 Inch Duct Height, 4 Inch Duct Width, 5/32 Inch Mounting Hole, 11-7/8 Inch L x 5-7/8 Inch W x 2 Inch D, Steel, Bright White Enamel
- Horizontal multi-shutter valve
Application: Residential