Hart & Cooley 683 12x4 W HVAC Register, 12" W x 4" H, Three-Way Steel for Sidewall/Ceiling - White (043869) All-steel construction Used for ceiling or sidewall installations Ideal for shallow duct installations Three-way deflection 1/2 inch spaced fins set at 40 degrees Multi-shutter valve 1-5/8 inch depth when fully opened Interlocking valve louvers for positive shut-off Bright White finish