24" X 24" Return Air Filter Grille - Filter Included - Easy Plastic Tabs for Removable Face/Door 18in diameter + Product Details Size –

+ Product Details Size – 32"w X 32"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 28" or 28" x 6" duct opening (measured at the opening)

And The Cooler Air From Outside WIll Flow In From The Bottom

this grille seamlessly drops into the designated place

+ Product Description Introducing our 16" x 16" Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

24" X 24" Return Air Filter Grille - Filter Included - Easy Plastic Tabs for Removable Face/Door 18in diameter + Product Details Size –+ Product Details Size 24"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" width X 25. 75" height Actual Filter Size 23 3 4"w x 23 3 4" x 1" High Quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter.