10" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover [Outer Dimensions: 12"] 12" Round Duct Pipe The integrated eight-tumbler lock system

The integrated eight-tumbler lock system

Actual Filter Size – 25 3/4"w x 11 3/4" x 1"

Actual Filter Size – 33 3/4"w x 15 3/4" x 1"

Pressure rating: 2300 to 6500 psi

10" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover [Outer Dimensions: 12"] 12" Round Duct Pipe The integrated eight-tumbler lock system10" Diameter Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 10" 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 10" Circular Round Aluminum HVAC