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The Air Admittance Valvesêare designed to allow the free entry of air into the sanitary pipework system without the escape of foul gasses into the building. BS EN 1230 Range temperatures of -20¡C to +60¡C Airflow: 43 L/s Quality product
The Air Admittance Valvesêare designed to allow the free entry of air into the sanitary pipework system without the escape of foul gasses into the building. BS EN 1230 Range temperatures of -20¡C to +60¡C Airflow: 43 L/s Quality product