This heavy-duty flange is specifically engineered to securely attach an escape tunnel to a shelter or bunker structure. Designed for use with the Escape Tunnel, it provides a reliable and watertight connection point critical for maintaining the integrity and safety of your underground installation.

KEY FEATURES 

Permanent Installation: The flange must be installed at the time of the concrete pour, ensuring it becomes an integral part of the bunker’s foundation or wall system.

Heavy-Duty Construction: Built from high-strength steel to withstand pressure, shifting, and external forces over time.

Precise Fit: Designed to seamlessly integrate with the Escape Tunnel, providing a secure and airtight connection.

Corrosion-Resistant Finish: Coated for durability and long-term resistance against moisture and environmental factors.

Essential for Escape Tunnel Installation: Required component for properly connecting an Escape Tunnel to concrete shelters or bunkers.

By installing this flange during your concrete pour, you ensure a permanent, leak-resistant connection that allows for the later attachment of the Escape Tunnel—providing an essential emergency egress route when needed most.