8" x 8" 3-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Filter Grille 5" - SEE BELOW IN

5" - SEE BELOW IN DESCRIPTION How To Measure A Grille

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actual front end outer dimensions are approximately 14 5/8" width X 12 5/8" height

With plain ends

actual front end outer dimensions are approximately 20 5/8" width X 22 5/8" height

8" x 8" 3-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Filter Grille 5" - SEE BELOW IN+ Product Details Size 8" X 8" 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