The 158A Retrofit Fitting is specifically designed to be added to existing tubular structures without requiring disassembly. Its unique hinge pin system allows for quick and secure installation onto preassembled frameworks.

Commonly used in multi-upright structures, this fitting connects a central vertical post with horizontal tubes in four directions. The upright passes through the center for added strength and stability.

Each kit is supplied and priced complete, including four castings and four taper pins

This fitting is only compatible with the D48 size range.