T-Cone Pipe Plug

The T-Cone Plug is the industry leader in reusable duct plugs. Containing no metal parts, the T-Cone provides a reliable seal against infiltration of debris, water or sewer gases. In blowout tests, the T-Cone Plug has also been able to withstand 20 feet of head pressure.

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The T-Cone’s two-piece, threaded design, consisting of an expandable sealing gasket with a tapered polyolefin-mating plug, provides for easy installation and removal. The T-Cone Plug is available in sizes ranging from 1” to 8” in diameter. Special sizes and configurations, including square gaskets are also available. T-Cone Plugs are also available with rope tie loops for tying off pull strings or ropes.

  • Round T-Cone® Plug for Conduit Barrel
  • Round T-Cone® Plug without Flange Conduit Hub
  • Round T-Cone® Plug with Flange Conduit Hub
  • Square T-Cone® Plug without Flange for Square Duct
  • Flush Mount T-Cone® Plugs
  • Flush Mount T-Cone® Plugs with Cover & Screws
  • Round T-Cone® Plug for Conduit Barrel with Rope Tie
  • Round T-Cone® Plug without Flange for Conduit Hub with Rope Tie
  • Round T-Cone® Plug with Flange for Conduit Hub with Rope Tie
  • Square T-Cone® Plug without Flange for Square with Rope Tie
  • T-Cone® Wrench for with and without Rope Tie