Material
ASTM-A653 CS Type B Galvanized Steel, G-30 Coating LFQ Chemical Treatment

Standard Gauge
26GA

Assembly
The elbows are assembled by using a roll formed hammer lock to secure the back and throat.

Features
S-locks and Drives are included with all rectangular duct

S-locks rails are roll formed on to secure wall stack to the elbow during installation

Options
Additional Sizes Available for Rectangular Duct