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  • Why GSI
  • Products
  • Where to Buy
  • News
  • Resources
  • Contact
Products

    HETO 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 duct fitting

    Tapered High Efficiency Takeoff

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  • Straight-Sided High Efficiency Duct Fitting

    Straight-Sided High Efficiency Takeoff

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  • heto; HVAC heto; high efficiency take off; crimped heto

    Center High Efficiency Takeoff

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  • Products Overview
  • HVAC Pipe
    • GreenSeam® Plus Snap-Lock Pipe
    • Reeves Lock Pipe
  • HETO High Efficiency Take Offs
    • Tapered High Efficiency Takeoff
    • Straight-Sided High Efficiency Takeoff
    • Center High Efficiency Takeoff
  • Conicals
    • Press On Conical
    • Spin In Conical
  • Saddle Taps
    • Saddle Tap
  • Duct Collars
    • 6″ Long Press-on Collar
    • 3″ Long Tabbed Collar
    • 6″ Long Tabbed Start Collar
    • 3″ Long Spin-in Collar
    • 6″ Long Spin-in Collar
  • Couplers
    • 6″ Long Coupler
    • 8″ Long Coupler
  • In-Line Sleeve Dampers
    • 6″ In-Line Sleeve Damper
  • Tee-Joints
    • Free Flow Tee Joint
  • Adjustable Pipe Elbows
    • 90° Adjustable Elbow
    • 45° Adjustable Elbow
  • Reducers and End Caps
    • Reducers
    • End Caps

Corporate Office

210 Fifth Street
Charleroi, PA 15022

Phone: (866) 285 5222

Fax: (724) 258 5494

Contact Us

Manufacturing Locations

1502 Industrial Drive
E. Monongahela, PA 15063

Phone: (724) 258 0500

300 SE 15th Street
Wagoner, OK 74467

Phone: (918) 485 1700

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