6" x 6" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Color_R-4.2 Yellow As The Hot Air Will

As The Hot Air Will Flow Up & Out

these heavy-duty louvers are ideal for use in attics

75"H – fits a 10" X 4" duct opening

actual front end outer dimensions are approximately 28 5/8" width X 22 5/8" height

75"H – fits a 12" X 12" duct opening

6" x 6" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Color_R-4.2 Yellow As The Hot Air Will+ Product Details Size 6" X 6" 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