8" x 8" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover Color_R-4.2 Yellow actual front end outer dimensions

actual front end outer dimensions are approximately 18 5/8" width X 26 5/8" height -

+ Product Details Size - 10"w X 10"h X 2"d (for duct opening measurement only)

The process is intuitive: simply select the appropriate ceiling square for your grill

180 Degrees Double Direction Adjustable - Fins Are Manually Adjustable Individually for Optimal Air Distribution

8" x 8" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover Color_R-4.2 Yellow actual front end outer dimensions+ Product Details Size 8" X 8" is the size for the duct opening measurement only, actual front end outer dimensions are 3". Design Equipped with lever for full airflow control; back blades made of black plastic for reduced air noise and discreet appearance; "Opposing" back blades, ensuring they don't overlap, provide precise damper control and superior air dispersion. High Quality Aluminum The premium durable aluminum will never rust and it will never