8" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover [Outer Dimensions: 10"] 10in diameter + Product Details Size –

+ Product Details Size – 32"w X 20"h is the size for the duct opening measurement only

Secure Locking Mechanism – Features a permanently attached eight-tumbler lock with a supplied key for added security

actual front end outer dimensions are approximately 2" wider

please note that the total outer dimensions of the grille measure 10" in diameter

+ Product Details Size – 34"w X 32"h is the size for the duct opening measurement only

8" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover [Outer Dimensions: 10"] 10in diameter + Product Details Size –8" Diameter Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 8" 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 8" Circular Round Aluminum HVAC