The B25-3A04 WM13W161WPH Washer Drain Pump is a white electric unit designed for built-in/ integrated washers. It is specifically compatible with Whirlpool washers and is suitable for removing excess water during the washing process. This drain pump comes as a single unit, making it easy to install and operate. With a power source of 120 volts, this Hanyu brand pump is an essential component for maintaining your washing machine's functionality.