8" X 20" Or 20" X 8" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 9.75 X 21.75] Curved Blade Steel It features an eight-tumbler lock

It features an eight-tumbler lock with a supplied key for secure access

ensuring accurate thermostat operation

Actual Filter Size – 23 3/4"w x 13 3/4" x 1"

ideal for accommodating various HVAC applications

Compatible with most mini-split air conditioner condensate outlet and regular drain hose connector on the market

8" X 20" Or 20" X 8" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 9.75 X 21.75] Curved Blade Steel It features an eight-tumbler lock+ Product Details Size 8"w X 20"h or 20" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" width X 21. 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