Easy-to-install system attached directly to underside of sink. Allows for installation of bar or utility sink without direct access to drain plumbing. Key features include: Complete compact system, perfect for basement bars, laundry, and utility sinks. Eliminates the need for traps, vents, and costly labor charges. Easily mounts underneath the sink. Quiet, trouble-free design. Automatic. 1-1/4" NPT adapter. 1 year limited warranty.