From Zexum comes the unobtrusive 100mm 4 cowl vent, available in two colour options this premium ventilation accessory reduces backdraught, is designed for weather resistance and protection against unwanted ingress with an internal flap which stays closed when not in use. In a neutral white or covert brown colour this vent is sure to blend in with your building for an unobtrusive product that simply does its job. Main Features: Unobtrusive design Weatherproof plastic casing Protection from rain or small animals with internal flap Available in two colours Technical Specification: Vent Size: 4 Inches / 100mm Note: Images are for illustrative purposes only, small variations to colour and shape may occur To see our full range of ventilation accessories Click Here