25"W X 25"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 26.75"W X 26.75"H] fixed bar Round-neck-to-square-face construction results in 360

Round-neck-to-square-face construction results in 360 degree air diffusion pattern similar to a full round diffuser

actual front end outer dimensions are approximately 36 5/8" width X 34 5/8" height

+ Product Details Size - 12"w X 26"h X 2"d (for duct opening measurement only)

+ Product Details Size – 20"w X 8"h is the size for the duct opening measurement only

Actual Filter Size – 21 3/4"w x 27 3/4" x 1"

25"W X 25"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 26.75"W X 26.75"H] fixed bar Round-neck-to-square-face construction results in 360+ Product Details Size 25"w X 25"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 26. 75" width X 26. 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