The Wavin OsmaSoil 4S304W 110mm Air Admittance Valve is designed for use with compatible 110mm soil and waste systems. The valve allows air to enter the drainage system while helping prevent foul odours from escaping through the soil pipework.
Part of the Wavin OsmaSoil range, this white air admittance valve provides a practical solution for compatible drainage and ventilation installations.
The Wavin Osma OsmaS 110mm ABS Air Admittance Valve (Grey) 4S306G provides reliable ventilation for soil and waste systems, preventing siphoning of traps. Ideal for domestic and commercial plumbing, it ensures smooth drainage and compliant airflow in 110mm pipe installations.