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  /    /  I-Series® Muni-Ball®

I-Series® Muni-Ball®

The future in pipe plugs is now.


  • Industry leading quality, consistency, and durability
  • Mechanical bonding of premium natural rubber and end plates eliminates failures from chemical bonding
  • Improved performance and safety through optimized design
  • Superior back pressure
  • Premium performance and aesthetics
  • Lightweight, short, and flexible

Cherne’s I-Series Muni-Ball plugs were designed to meet the needs of both the US and International markets in terms of size and expansion range. Our I-Series plugs have full body cording for added durability.

I-Series plugs feature:

  • Superior expansion range
  • Small deflated diameters
    • All plugs up through our 24–60″ size easily fit through a 24″ manhole frame
    • 48–72″ and 54–96″ plugs fit through 36″ openings
  • Flexible bypass hoses – plugs can be bent to 90 degrees

Plugs 15-32″ and larger:

  • Aluminum end plates – minimizes rust/ corrosion
  • 3/4″ eyebolts on plugs 15–32″ and larger – better holding strength
  • Patented field replaceable rupture discs or pressure relief valves on plugs 15–32″ and larger – protects plug from over-inflation

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