10" x 10" 3-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades w16h16 + Product Details Size –

+ Product Details Size – 6" x 30" or 30" x 6" is the size for the duct opening measurement only

Actual Filter Size – 21 3/4"w x 13 3/4" x 1"

+ Product Details Size – 26"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 36"w X 10"h is the size for the duct opening measurement only

10" x 10" 3-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