12" x 12" 3-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades 18in diameter 75"H – fits a 24"

75"H – fits a 24" X 10" duct opening

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 10" duct openings

Actual Filter Size – 13 3/4"w x 5 3/4" x 1"

actual front end outer dimensions are approximately 14 5/8" width X 22 5/8" height

12" x 12" 3-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades 18in diameter 75"H – fits a 24"+ 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