24"W X 8"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 25.6"W X 9.6"H] Filter Grille our Butterfly Damper simplifies the

our Butterfly Damper simplifies the process of managing airflow

+ Product Details Size - 34"w X 12"h is the size for the duct opening measurement only

75" width X 9

+ Product Details Size - 20"w X 12"h is the size for the duct opening measurement only

Adjust the airflow to your preference by simply opening or closing the top panel

24"W X 8"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 25.6"W X 9.6"H] Filter Grille our Butterfly Damper simplifies the+ Product Details Size 24"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 6" width X 9. 6" height. Design Full Control Vertical Horizontal Air flow Direction. Horizontal blades in the front, Vertical blades in the back, both individually adjustable. High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant,