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

actual front end outer dimensions are approximately 18 5/8" width X 12 5/8" height

Actual Filter Size – 29 3/4"w x 31 3/4" x 1"

See our separate listing for Butterfly Dmaper to Control Airflow

Actual Filter Size – 19 3/4"w x 24 3/4" x 1"

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