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Cherne Single-Size Underground Test-Ball Plugs offer an economical pneumatic plug option for blocking flow, allowing for maintenance in sanitary and storm sewer systems. These plugs may also be used as a back plug for sewer air tests.

Product Features:
  • Holds 30 ft of head and back pressure to 13 PSI
  • Single-Size Underground Test-Ball Plugs are made of natural rubber material for excellent expansion and memory
  • Seals both round and out-of-round pipe
  • Removable inflation valve can be replaced if damaged or replaced with quick disconnect fitting
  • Features an eye-bolt for use with a poly-lift line
  • Use to block flow or as a back plug for sewer air testing
  • Available in multiple sizes

  • Inflation Pressure: 25 PSI
  • Maximum Back Pressure: 13 PSI / 30 ft.
  • Usage Range: 14-16.25 in.
  • Color: Black
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Manuals (1)
Product Type:

Test Plug




Max Pressure (PSI):





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