Four-Way Plastic Side Wall/Ceiling Register in White 12" w X 12" h for Duct Opening (Outside Dimension is 14" w X 14" h) 15" long heavy duty steel

15" long heavy duty steel construction with decor matte black powder coating finish

If you measure outside or surface size

actual outsize overall dimensions is 14“ wide by 10” high

18" long heavy duty steel construction with white powder coating finish

It has built-in damper to control air flow

Four-Way Plastic Side Wall/Ceiling Register in White 12" w X 12" h for Duct Opening (Outside Dimension is 14" w X 14" h) 15" long heavy duty steelThe Listed size 12"x 12" is for inside duct opening measurement(duct hole), actual outside dimension is 14" X 14" All plastic construction with 1 2" fin spacing for high air flow with rust proof feature perfect for areas with high moisture Four way air deflection design with bright white face and black damper in the back Multi shutter damper with easy handle to adjust desired amount of air flow Four screw holes and screws are included