Fits 16x16 Duct Opening Stamped Steel Return Air Grille Vent Cover Grille for Sidewall and Ceiling in White Surface Dimensions: 17.75"W X 17.75"H (16" W x 16" H Duct Opening) actual outsize overall dimensions is

actual outsize overall dimensions is 9

•Stamped face steel construction with 1/2" fin spacing for high air flow

The premium black matte finish not only introduces a touch of elegance but also ensures exceptional resistance against rust and corrosion

This product has listed size 12“w X 6”h is for duct opening measurement only

15" long heavy duty steel construction with white powder coating finish

Fits 16x16 Duct Opening Stamped Steel Return Air Grille Vent Cover Grille for Sidewall and Ceiling in White Surface Dimensions: 17.75"W X 17.75"H (16" W x 16" H Duct Opening) actual outsize overall dimensions isThe Listed size 16"x16" is for inside duct opening measurement, actual outside dimension is 17. 75"x17. 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