Manrose 100mm Wall Outlet with Gravity Flaps Dual Fitting White

A practical solution for roof ventilation, suited to both internal and external use. Ideal for roofers, builders, and loft converters, this vent offers dependable airflow while protecting against water ingress thanks to its integrated weather sill. Features For effective airflow control. Designed with a weather sill to prevent water ingress and ensure long-lasting weatherproofing. Dual fitting compatible with both round and rectangular ducting for versatile installation. Perfect for roofing ventilation in domestic and light commercial buildings. Application Designed to provide effective ventilation for pitched or flat roofs, supporting moisture control and air circulation in loft conversions, re-roofs, and new builds. Its gravity flap design prevents back-draughts, helping maintain indoor air quality and energy efficiency. The dual fitting option allows easy connection to round or rectangular ducting, simplifying installation on site. Specifications Dimensions: 100mm (4 inch) diameter outlet suitable for standard duct sizes Material: Durable plastic construction designed to withstand UK weather conditions Type: Roof ventilation accessory – wall outlet vent