3" Circular Round Plastic HVAC Supply Grille Air Diffuser -Vent Duct Cover [Outer Dimensions: 5"] Powder Coated Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 12" duct openings

actual front end outer dimensions are approximately 27 5/8" width X 14 5/8" height

Simplified Installation: Our Radial Damper ensures easy setup

Quality Packaging - Carefully Shrink Wrapped with Cardboard Backing to Prevent Damage in Shipment

+ Product Details Size – 10" x 22" or 22" x 10" is the size for the duct opening measurement only

3" Circular Round Plastic HVAC Supply Grille Air Diffuser -Vent Duct Cover [Outer Dimensions: 5"] Powder Coated Ideal for Walls & Ceilings:+ Product Details Size 3" Diameter is the size for the duct opening measurement only, actual front end outer dimensions are 5" diameter. Design Made of strong durable ABS plastic, will last forever & never rust. Easy removal for cleaning. Airflow Improved airflow dynamics long neck bBody reduced noise design integrated spring fasteners. Easy Installation Just pop the diffuser right into the wall duct hole and the side springs will hold it right into