8"x 8" (Duct Opening Size) 4-Way Stamped Face Steel Ceiling/sidewall Air Supply Register - Vent Cover - Actual Outside Dimension 9.75" X 9.75" Actual outside measurement is 16"

Actual outside measurement is 16" x 10"

actual outside dimension is 21

actual outsize overall dimensions is 14'' X 14''

Keep your order within the warranty period

The Listed size 14"x 8" is for inside duct opening measurement

8"x 8" (Duct Opening Size) 4-Way Stamped Face Steel Ceiling/sidewall Air Supply Register - Vent Cover - Actual Outside Dimension 9.75" X 9.75" Actual outside measurement is 16"This steel stamp faced register is for sidewall or ceiling applications. The listed size 8"w X 8"h is for duct opening measurement only. Actual outside overall dimensions is 9. 75" wide by 9. 75" high. Difference between "inside" and "outside": Inside (duct opening) is the measurement you can see after taking the vent off the wall or ceiling. "outside" measurement is the surface you can see after the installation. Size selection guide: 1) take the