4" X 30" Or 30" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: [5.75 X 31.75] Sheet Metal/Adjustable Elbow + Product Details Size -

+ Product Details Size - 8"W X 4"H is (for duct opening measurement only)

Designed for both walls and ceilings

compatible with 5" duct | 2 in a pack - 2' pipe – 4 foot length when connected – 30 gauge thick & made of thick & durable galvanized sheet metal

Actual Filter Size – 29 3/4"w x 27 3/4" x 1"

actual front end outer dimensions are approximately 18 5/8" width X 32 5/8" height -

4" X 30" Or 30" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: [5.75 X 31.75] Sheet Metal/Adjustable Elbow + Product Details Size -+ Product Details Size 4"w X 30"h or 30" x 4" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 75" width X 31. 75" height. High Quality High grade steel construction meant for high foot traffic areas. Installation Location Floor. Design Easy drop in installation. Powder Coat Finish Smooth, shiny, scratch resistant, with no sharp edges. Looks like it was just waxed. Quality Packaging Carefully