34"W X 8"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 35.75"W X 9.75"H] Aluminum For example

For example

75" width X 25

Actual Filter Size – 13 3/4"w x 19 3/4" x 1"

Actual Filter Size – 35 3/4"w x 23 3/4" x 1"

34"W X 8"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 35.75"W X 9.75"H] Aluminum For example+ Product Details Size 34"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 35. 75" width X 9. 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 waxed.