![Double L Group Eco Tight Tunnel Door](https://img.wattagnet.com/files/base/wattglobalmedia/all/image/2023/02/an.Double-L-Group-EcoTight-Tunnel-Door.jpg?auto=format%2Ccompress&q=70&w=400)
The Double L Group EcoTight Tunnel Door is made with durable, long-lasting materials that ensure a tight seal system. Tunnel ventilation doors are commonly leaky, but the EcoTight Tunnel Door is designed to prevent this problem.
The Double L Group EcoTight Tunnel Door is made with durable, long-lasting materials that ensure a tight seal system. Tunnel ventilation doors are commonly leaky, but the EcoTight Tunnel Door is designed to prevent this problem.