NuTone PB7WH Wired One-Unlighted Door Chime Push Button, White One unlighted pushbutton White finish Model number PB7WH 2-7/8-Inch x 1-Inch x 3/4-Inch NuTone push buttons are available in satin nickel, polished brass, oil-rubbed bronze, antique brass, black, gold, white, and chrome finishes, and in a wide selection of designs for each