Cowls with Seal
Cowls with Seal are used to terminate ductwork and protect ventilation openings from weather, debris and back-draught while maintaining smooth airflow and system efficiency across commercial, industrial and residential installations. Manufactured from corrosion-resistant galvanised steel to HVAC DW144, they are suitable for high, medium and low-pressure systems and support reliable discharge or intake at roof or wall level. Each cowl incorporates an EPDM double-lip seal that creates an airtight joint without mastic—retaining elasticity, resisting ageing and reducing leakage for improved energy efficiency, pressure performance and long-term installation reliability.