4" X 18" Or 18" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 19.75] w14h14 + Product Description Introducing our

+ Product Description Introducing our 18" x 30" or 30" x 18 Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

100% Satisfaction Guaranteed – Don’t worry you’re covered by our 100% money back guarantee no questions asked

Actual Filter Size – 35 3/4"w x 27 3/4" x 1"

+ Product Details Size & Compatibility – The size of galvanized sheet metal straight floor boot is 10" X 6" X 4"

4" X 18" Or 18" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 19.75] w14h14 + Product Description Introducing our+ Product Details Size 4"w X 18"h or 18" x 4" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 75" width X 19. 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