You are trying to find a valve currently attached to your washing machine drain line at the drain. It is plastic and has a BB in a vent hole that blocks overflow of water. Genesis valve?

The manufacturer of the genesis valve is: JDJ Valve Company

P.O. Box 206

Troy, TX 76579

Phone : (254) 938-7678 You can buy it retail from: Staas Plumbing Temple, TX (254) 778-2575 Regards, Dennis/Waco, TX