14"W X 6"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 15.75"W X 7.75"H] 8" Diameter Superior Airflow Control: Built-in damper RGADJ-3012 7" Round Duct Pipe Quality Packaging carefully packaged

Superior Airflow Control: Built-in damper lets you control how much air enters your room

This thoughtful design ensures optimal air circulation for your HVAC system

Actual Front End Outer Dimensions Are 42" Width X 18" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Details Size – 20"w X 14"h is the size for the duct opening measurement only

14"W X 6"H [Duct Opening] 3 Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 15.75"W X 7.75"H] 8" Diameter Superior Airflow Control: Built in damper RGADJ 3012 7" Round Duct Pipe Quality Packaging carefully packaged Superior Airflow Control: Built in damper lets you control how much air enters your room This thoughtful design ensures optimal air circulation for your HVAC system