Wallair Fans Vent grille 633068 - Wallair N32820, The Wallair N32820 vent grille is a plastic air vent suitable for pipes with a 100 mm diameter. This fan grille is ideal for ensuring proper ventilation in HVAC systems. Typical applications include use in residential or commercial settings to enhance airflow efficiency. Wallair N32820 Vent Grille Plastic 100mm Window Net Circular Connector
