16" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover [Outer Dimensions: 18"] 10" Diameter + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 24" OR 24" x 18" duct opening (measured at the opening)

Quality Packaging – Carefully shrink wrapped with cardboard backing to prevent damage in shipment

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+ Product Details Size - 26"w X 22"h is the size for the duct opening measurement only

16" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover [Outer Dimensions: 18"] 10" Diameter + Product Details Perfect Fit16" Diameter Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 16" Diameter Incorporated with Integral Butterfly Damper for full Airflow Control Assembeled Before Powder Coat Paint, to Ensure Perfect Smooth Finish Commercial Grade Aluminum Will Never Rust Designed for Warehouses, Factories, Workshops, Gymnasiums & Restaurants Center Core is Removable for Easy Access and Maintence 16" Circular Round Aluminum HVAC