12"w X 12"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 13.75"H] Material_Steel + Product Details Size - MFFG410-1 w6h6 actual front end outer

+ Product Details Size - 24"w X 12"h X 2"d (for duct opening measurement only)

Round-neck-to-square-face construction results in 360 degree air diffusion pattern similar to a full round diffuser

Constructed from sturdy 20-gauge steel

actual front end outer dimensions are approximately 14 5/8" width X 28 5/8" height

12"w X 12"h [Duct Opening] 3 Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 13.75"H] Material_Steel + Product Details Size MFFG410 1 w6h6 actual front end outer + Product Details Size 24"w X 12"h X 2"d (for duct opening measurement only) Round neck to square face construction results in 360 degree air diffusion pattern similar to a full round diffuser