8"W X 4"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 9.875"W X 5.875"H] Color_R-8.0 Pink Slots are angled to diversify

Slots are angled to diversify the airflow in 2 way direction

+ Product Details Size - 4"w X 30"h is the size for the duct opening measurement only

Actual Filter Size – 33 3/4"w x 13 3/4" x 1"

Easy Installation: Comes with mounting screws for a secure fit in minutes

Actual Filter Size – 33 3/4"w x 21 3/4" x 1"

8"W X 4"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 9.875"W X 5.875"H] Color_R-8.0 Pink Slots are angled to diversify+ Product Details Size 8"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 875" width X 5. 875" height. High Quality High quality aluminum with counter sunk screw holes (screws included) and no sharp edges. Design Unrestricted airflow For Your HVAC system noise free components no vibrating louvers etc. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just