•PVCAFS non-insulated reinforced PVC flexible air ducts are specifically produced for low and medium pressure heating, cooling, ventilation, air conditioning, exhaust and dust extraction systems. •PVCAFS is highly resilient and can be used in applications with excessive vibration and/or perpetual motion systems. •PVCAFS flexible air ducts are airtight. •PVCAFS is manufactured from hardwearing PVC canvas strip reinforced with high tension steel spring wire. •PVCAFS is highly elastic and flexible. It can be easily fitted to circular, oval or rectangular connectors.