10"w X 10"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 11.75"H] 18in diameter + Product Details Size - RGADJ-3012 7" Round Duct Pipe Quality Packaging carefully packaged

+ Product Details Size - 16"w X 14"h is the size for the duct opening measurement only

High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

actual front end outer dimensions are approximately 23 5/8" width X 7 5/8" height

+ Product Details Size - 28"w X 28"h is the size for the duct opening measurement only

10"w X 10"h [Duct Opening] 3 Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 11.75"H] 18in diameter + Product Details Size RGADJ 3012 7" Round Duct Pipe Quality Packaging carefully packaged + Product Details Size 16"w X 14"h is the size for the duct opening measurement only High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy