Introducing the Elica KIT02719 Non-Return Valve Kit, an essential component designed to enhance the efficiency and functionality of your kitchen exhaust system. This kit ensures that the airflow in your ventilation system remains optimal by preventing the backflow of air, maintaining a healthy and clean environment in your kitchen. The Elica KIT02719 Non-Return Valve Kit is crafted with precision and durability, guaranteeing long-lasting performance and reliability. Upgrade your kitchen exhaust system with this high-quality kit to experience improved air circulation and ventilation.