10"w X 8"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 9.75"H] w12h12 actual front end outer dimensions Suitable for all AC 8in diameter 12125SDCLNGBX

actual front end outer dimensions are approximately 12 5/8" width X 36 5/8" height

Actual Filter Size – 7 3/4"w x 9 3/4" x 1"

+ Product Details Size – 34"w X 32"h is the size for the duct opening measurement only

+ Product Details Size – 25"w X 26"h is the size for the duct opening measurement only

10"w X 8"h [Duct Opening] 1 Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 9.75"H] w12h12 actual front end outer dimensions Suitable for all AC 8in diameter 12125SDCLNGBX actual front end outer dimensions are approximately 12 5 8" width X 36 5 8" height Actual Filter Size – 7 3 4"w x 9 3 4" x 1"