Accord AB3BGWH126 Baseboard Grille with 1/3-Inch Fins Louvered Design, 12-Inch x 6-Inch(Duct Opening Measurements), White,Accord,AB3BGWH126" /> Steel construction For floor application 1/3-in spaced fins 7/8-in projection Listed product sizes refer to the duct opening measurements, not the register itself