14" x 14" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Grilles the actual front end outer

the actual front end outer dimensions are 10" in diameter

+ Product Details Size – 30"w X 28"h is the size for the duct opening measurement only

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actual front end outer dimensions are approximately 27 5/8" width X 26 5/8" height

14" x 14" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Grilles the actual front end outer+ Product Details Size 14" X 14" 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