The DH-22 Lower mast extensions are designed to provide additional solutions to height-restrictive applications than the DH-3 one-piece mast alone. The two-piece mast system allows the use of components in various configurations and applications. Multiple winches and/or self-retracting lifeline systems may be mounted as required. Tool-less design breaks the system into a lightweight, manageable components for storage, transport, and setup. 

dh-22 Technical Specs