14" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover [Outer Dimensions: 16"] Compatible With Duct 8in + Product Details Size -

+ Product Details Size - 14"w X 36"h is the size for the duct opening measurement only

For 14" Round Duct Opening - Spiral or Flex

Roundover Beveled Edges

+ Product Details Size - 30"w X 24"h is the size for the duct opening measurement only

14" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover [Outer Dimensions: 16"] Compatible With Duct 8in + Product Details Size -14" Diameter Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 14" 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 14" Circular Round Aluminum HVAC