Self-Sealing Waterless P Trap 1-1/2″, One Way Sanitary Hepvo Waste Valve Upgrade
It also allows the admittance of air into the waste system and can replace the need for AAV’s in branch ventilation. Function: The waterless trap is a unique self-sealing waste valve that prevents the backflow of air and wastewater into showers and sinks while actively maintaining pressure equilibrium in drainage systems.