Our most economical collar is designed with a stop bead and easy-bend tabs, the collar is installed into the duct and secured by bending the tabs.
Technical Specs
- GSI Collars are designed and tested to surpass SMACNA Class 3 Leakage Standards
- Pre-sealed with gasket made of EPDM rubber and proprietary co-polymer
- Zero VOCs
- Galvanized Steel (ASTM A653 and A924)
- G-60 Galvanized Coating (ASTM A653 and ASTM A90)
- Available in Specialty Metals:
- G-90 Galvanized Steel
- Aluminum (ASTM B209 Alloy 3003 Temper H14)
- 304 Stainless Steel (ASTM A480 2B Finish)
- Pressure Rating: Designed per SMACNA Third Edition 2005, Section 4.8 Figure 4-6 Branch Connections
- Dimensional Tolerance: ± 1/4”