18"W X 28"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 19.75"W X 29.75"H] Fixed Blades with Damper 1-1/8” - 2334 PSI

1-1/8” - 2334 PSI

75" width X 26

+ Product Details Size - The listed 8" diameter refers specifically to the size of the duct opening

+ Product Details Size – 12" X 4" is the size for the duct opening (floor/vent hole) measurement only

18"W X 28"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 19.75"W X 29.75"H] Fixed Blades with Damper 1-1/8” - 2334 PSI+ Product Details Size 18"w X 28"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 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