Fits 24x14 Duct Opening Stamped Steel Return Air Grille Vent Cover Grille for Sidewall and Ceiling in White Surface Dimensions: 25.75"W X 15.75"H (24" W x 14" H Duct Opening) For example: If the hole

For example: If the hole on the wall is 16" wide by 25" tall

Measure the duct opening

buy a 20x14 grille

Select the listed size that match the duct opening size

Fits 24x14 Duct Opening Stamped Steel Return Air Grille Vent Cover Grille for Sidewall and Ceiling in White Surface Dimensions: 25.75"W X 15.75"H (24" W x 14" H Duct Opening) For example: If the holeThe Listed size 24"x14" is for inside duct opening measurement, actual outside dimension is 25. 75"x15. 75" Stamped Face Steel Construction with 1 2" fin spacing for high air flow applications. Screws are included for easy installation White Powder coating with matte finish Individually packed with cardboard box for ultra protection