22"W X 28"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 23.75"W X 29.75"H] Aluminum - Cube Core Insulation – A thick blanket

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 4

High Quality – Solid rigid steel body for durability and reliability

+ Product Details Size - 22"w X 14"h is the size for the duct opening measurement only

High Quality – High-quality aluminum with counter-sunk screw holes (screws included) and no sharp edges

+ Product Details Size - 18"w X 14"h is the size for the duct opening measurement only

22"W X 28"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 23.75"W X 29.75"H] Aluminum - Cube Core Insulation – A thick blanket+ Product Details Size 22"w X 28"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 75" width X 29. 75" height. Design Easy unrestricted airflow for your HVAC system 50 angled to provide maximum airflow. High Quality Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just