Fits 14x24 Duct Opening Stamped Steel Return Air Grille Vent Cover Grille for Sidewall and Ceiling in White Surface Dimensions: 15.75"W X 25.75"H (14" W x 24" H Duct Opening) Built in magnets on each

Built in magnets on each side for easy installation

The Listed size 24"wx24h" is for inside duct opening measurement

If you measure outside or surface size

VERSATILITY: This deflector is built with durable transparent material

Fits 14x24 Duct Opening Stamped Steel Return Air Grille Vent Cover Grille for Sidewall and Ceiling in White Surface Dimensions: 15.75"W X 25.75"H (14" W x 24" H Duct Opening) Built in magnets on eachThe Listed size 14"x24" is for inside duct opening measurement, actual outside dimension is 15. 75"x25. 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