4TRADE AV110 Solvent Weld Air Admittance Valve Black

The Air Admittance Valves are designed to allow the free entry of air into the sanitary pipework system without the escape of foul gasses into the building. Product is A1êapproved in accordance with BS EN 12380, it can be installed below the flood level of connected appliances Tested and approved for use in installations varying between -20¡ & +60¡C (no insulation required) Airflow: 43 L/s Quality product