Eccentric Series

Eccentric Series

Maintaining a continuous flowline in critical grade conditions

When competitor eccentric couplings create obstruction and back-up, Fernco's Eccentric Coupling aligns the pipes inside wall to create an obstruction free flow.


The list below is popular sewer pipe size / material combinations - these are all two piece (Bushings/couplings)*. Specific applications not listed here are available or can be custom ordered.

*1002-64EC is the only one piece Eccentric Coupling.


  • Connects 6" Clay to 4" Cast Iron or Plastic
  • Aligns the inside wall of the two pipes
  • Provides an obstruction free flow
  • Meets ASTM C 1173 and D 5926
  • 300 series stainless steel clamps


  • Maximum test pressure: 4.3 PSI (29.6KPA)
  • Maximum operating temperature: 140º F non-consistent