20" X 14" Or 14" X 20" Heavy Duty Floor Grille - Fixed Blades Air Grille- Brown [Outer Dimensions: 21.75 X 15.75] Copper Coil This 24" X 10" end

This 24" X 10" end cap is constructed with 26-gauge galvanized steel

Or a 1/2" HVAC fitting

+ Product Description Ventilate your home or commercial space with our Aluminum Outdoor Weatherproof Louvers

+ Product Details Size - 14"w X 8"h Is The Size For The Duct Opening Measurement Only

Tough reinforced metallized polyester jacket - tear and puncture resistant

20" X 14" Or 14" X 20" Heavy Duty Floor Grille - Fixed Blades Air Grille- Brown [Outer Dimensions: 21.75 X 15.75] Copper Coil This 24" X 10" end+ Product Details Size 20"w X 14"h or 14" x 20" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 75" width X 15. 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