12" x 12" 3-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Material_Steel + Product Details Size -

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

+ Product Description Introducing the 6" Butterfly Damper – Your Solution for Controlled Airflow

9% Pure Copper meeting ASTM B280 standards

+ Product Details Size – 10" x 16" or 16" x 10" is the size for the duct opening measurement only

Our innovative adjustable design changes the game

12" x 12" 3-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Material_Steel + Product Details Size -+ 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