The Easi Plumb white Waste Coupling 40mm is a lightweight yet strong and cost-effective option for joining waste water piping. To assemble, apply solvent cement evenly to both surfaces of the joint, insert the pipe fully into the socket depth, and remove any surplus cement with a cloth. Allow five minutes for the cement to set before handling and twelve hours before testing the system. This fitting is designed for easy application and is suitable for 40mm waste water piping.