- Designed for the largest and heaviest ductwork
- Roll formed from 20 gauge
- Available in galvanized, aluminum, aluminized, stainless steel, galvanneal and PVC coated.
- 20’ lengths to reduce waste
- Integrated sealant pocket for an airtight seal
- The corners are stamped from 11 gauge (include nuts and bolts)
- A SMACNA J rating