12" x 12" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Fixed Blades with Damper /* more vertical + left

/* more vertical + left spacing */ } /* OPEN STATE */ #hvac-product-accordion

this grille is a testament to high standard craftsmanship

fasten the edges to studs with the provided screws

+ Product Details Size – 28"w X 22"h is the size for the duct opening measurement only

12" x 12" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Fixed Blades with Damper /* more vertical + left+ 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