12"x 8" (Duct Opening Size) 3-Way Stamped Face Steel Ceiling/sidewall Air Supply Register - Vent Cover - Actual Outside Dimension 13.75" X 9.75" If your duct opening size

If your duct opening size is 10” x 8”

Width vs Height The first measurement in a return grille size is the width(horizontal measurement)

Outside overall dimension is 16”wide and 10”high

•The Listed size 10"x 6" is for inside duct opening measurement

12"x 8" (Duct Opening Size) 3-Way Stamped Face Steel Ceiling/sidewall Air Supply Register - Vent Cover - Actual Outside Dimension 13.75" X 9.75" If your duct opening sizeThe Listed size 12"x 8" is for inside duct opening measurement (the duct hole) , actual outside dimension is 13. 75" X 9. 75". Stamped Face Steel Construction with 1 2" fin spacing for high air flow Three Way Air Flow deflection Design 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