Hart & Cooley® Supply Register, 821 Series, 6 x 24 in, 3/4 in Grille Spacing, 1-Way Deflection, 310 to 1540 cfm, 2 in Length, 25-7/8 in Width, 7-7/8 in Height, Steel, Finish: Enamel, Bright White, 5-1/4 in H x 23-1/4 in W Duct
- Vertical, adjustable face bars
- Horizontal multi-shutter valve