12"x12" Stamped Face Steel Return Grille Vent Cover White Poweder Coating Without Frame Outside Dimension 13.75"x13.75" actual overall outside dimension is

actual overall outside dimension is 26

The Listed size 16"x 16" is for inside duct opening measurement

please take off your old floor register and measure the duct hole

Sidewall/Ceiling Register Measurement

Whether you prefer to leave it fully open for optimal airflow or close it off completely to redirect extra heat or air conditioning to other rooms

12"x12" Stamped Face Steel Return Grille Vent Cover White Poweder Coating Without Frame Outside Dimension 13.75"x13.75" actual overall outside dimension isThe Listed size 12"x12" is for inside duct opening measurement, actual outside dimension is 13. 75"x13. 75" Stamped Face Steel Construction with 1 2" fin spacing for high air flow Screws are included for easy installation White Powder coating with matte finish