Manufactured with an integral one-inch flange and peel and stick gasket, our press-on collar installs easily without the need of external sealing.
- 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”
* Test performed on standard fittings without dampers
** 2 piece collar provided on Aluminum and Stainless Steel.