10" x 10" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades w16h16 + Product Details Size -

+ Product Details Size - 28"w X 8"h is the size for the duct opening measurement only

Our innovative adjustable design changes the game

+ Product Details Size - 18"w X 12"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 30 5/8" width X 26 5/8" height

10" x 10" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades w16h16 + Product Details Size -+ Product Details Size 10" X 10" 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