The ECOAIRF00050 5" Core Vent is a non-controllable wall vent designed for use with combustion appliances where permanent airflow is required. Finished in clean white, it provides reliable passive ventilation while maintaining a neat, low-profile appearance suitable for both modern and traditional properties. Manufactured for durability and consistent airflow performance, this core vent is ideal for use with gas fires, boilers and other combustion appliances requiring fixed ventilation in line with current building regulations. Suitable for internal and external wall applications.