The optional deck plate allows you to neatly cover any sink holes not in use. If your specific installation doesn't require any holes to be covered, simply discard the deck plate.
Either way, we've got you covered. EASY INSTALLATION: Designed to fit single-hole, 2-hole, or 3-hole configurations. An optional deck plate is conveniently included for 3-hole installation 360 DEGREE SWIVEL: The high arc design swivels 360 degrees for easy, versitile use during everyday kitchen tasks SPRAY AWAY MESSES.