KOHLER 8830-0 K-8830-0, White KOHLER sink hole cover easily covers an extra sink hole drilling on your sink. 1-3/4-Inch diameter For holes 1/2-Inch to 1-1/2-Inch in diameter and deck thickness up to 1-1/2-Inch KOHLER finishes resist corrosion and tarnishing, exceeding industry durability standards two times