24" X 12" [Duct Opening] 2-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 25.75"W X 13.75"H] w34h34 actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 10 5/8" width X 14 5/8" height

+ Product Details Size – 20" x 20" is the size for the duct opening measurement only

+ Product Details Size – 28"w X 10"h is the size for the duct opening measurement only

Actual Filter Size – 24 3/4"w x 19 3/4" x 1"

Designed for optimum performance

24" X 12" [Duct Opening] 2 Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 25.75"W X 13.75"H] w34h34 actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 10 5 8" width X 14 5 8" height + Product Details Size – 20" x 20" is the size for the duct opening measurement only