Simple Drain, Flexible P-Trap. Innovative, self-plunging sink drain solution that installs in minutes. Patented flexible, durable rubber hose design, headache free installations for virtually every single and twin-bowl application. Pipe clean-out is a breeze, and clogs are a thing of the past thanks to the innovative "self- purging" feature. No plunger or chemicals required. For installation, tools are not required - just scissors to cut the hose to the desired length. The product screws into a water-tight fitting for the waste-water wall connection and uses a clamp with thumb screw to connect to the tail pipe coming from the drain. The P-trap is easily formed with a loop that slides on the rubber hose.