12" x 12" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover w16h16 3 * insulation density is

3 * insulation density is 30kgs/cbm = 0

+ Product Details Size - 25"w X 10"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 30 5/8" width X 22 5/8" height

and a touch of elegance in one superior product

Perfect for both residential and commercial use

12" x 12" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover w16h16 3 * insulation density is+ Product Details Size 12" X 12" 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