24" X 24" Return Air Filter Grille - Filter Included - Easy Plastic Tabs for Removable Face/Door Ducting Components while the included installation screws

while the included installation screws make setup quick and hassle-free

+ Product Details Size - 18"w X 18"h Is The Size For The Duct Opening Only

providing comfort and control

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actual front end outer dimensions are 17

24" X 24" Return Air Filter Grille - Filter Included - Easy Plastic Tabs for Removable Face/Door Ducting Components while the included installation screws+ 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.