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High Efficiency Take-Offs

GSI’s most versatile factory sealed fittings, combining efficient use of space and optimal airflow. Our HETOS are available in three styles to suit virtually every installation need. Yellow Union Label manufacturing is standard on these products.

Tapered High Efficiency Takeoff

  • GSI HETOs 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

Straight-Sided High Efficiency

  • GSI HETOs 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

Center High Efficiency Takeoff

  • GSI HETOs 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