When a leaking tube is found, tube plugs are used as a quick, cost effective way to reduce vessel downtime and get the unit back on line. The tube plug material should match the tube material being plug. Standard One-Piece Plugs are suitable for pressures up to 150 psi and easy to install with just a hammer, no special tools are required.

GTT OnSET offers a selection of Tube Gauges for measuring tubes and tube sheet holes for making the selection of tube plugs easier and more accurate. Please look at our measuring section.

If tube sheet damage is a concern, or if the customer prefers, we can supply Two-Piece Tube Plugs in a variety of materials.

  • A quick method to plug leaky tubes
  • Common sizes and materials in stock for Chiller and Boiler Sizes
  • Plug covers multiple sizes and gauges
  • Available in different materials for any job
  • GTT OnSET supplies Material Test Reports for each Tube Plug package

One-Piece Tube Plugs

Stock item. Contact us with your tube material and tube size.


Elliott’s One-Piece Tube Plugs cover a wide tube OD range, making them ideal for sealing leaky tubes in both heat exchangers and boilers.

  • Tube Size: 0.375″ to 3.000″ (9.5 – 76.2mm) OD
  • Maximum Pressure: 150 PSI
  • Materials: Brass, Carbon Steel, Stainless Steel, Aluminum, Monel, and more.
All One-Piece Tube Plug Packages include a Material Test Report
Elliott xOne Piece Plug
1 pc Tube Plug Sheet.pdf

Two-Piece Tube Plugs

  • Available in brass, carbon steel and stainless steel
  • 2 PC Tube Plugs in all materials are available upon request.

Elliott’s Two-Piece Tube Plugs offer more sealing due the tapered pin design. This gives even expansion to the ring and a long contact to the seal.

  • Tube Size: 0.375” to 1.250 (9.5 – 31.8mm) OD
  • Maximum Pressure: 150 PSI
  • Materials: Brass, Carbon Steel, Stainless Steel, Aluminum, and more
Elliott xTwo Piece Plug
2 pc Tube Plug Sheet.pdf