14" X 8" [Duct Opening] 2-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 9.75"H] sidewall Actual Filter Size – 19 Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Actual Filter Size – 19 3/4"w x 23 3/4" x 1"

+ Product Details Size - 20"w X 36"h is the size for the duct opening measurement only

Noise free components - no vibrating louvers etc

+ Product Details Size – 25"w X 36"h is the size for the duct opening measurement only

Slots Are Angled to Diversify The Airflow In 2 Way Direction - Great for Wall and Floor & ceiling Applications

14" X 8" [Duct Opening] 2 Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 9.75"H] sidewall Actual Filter Size – 19 Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Actual Filter Size – 19 3 4"w x 23 3 4" x 1" + Product Details Size 20"w X 36"h is the size for the duct opening measurement only