Drain Couplings (same sized pipe couplers)

Fernco, previously known as Flexseal, Drain Couplings, sometimes referred to as couplers, are simple, easy to use drainage pipe connectors. Drain Couplings are designed to connect two pipes with the same or similar (within 10mm) outside diameter.

  • Easy to fit
  • Simple and versatile
  • Completely airtight and watertight connection
  • Can be used to connect plain ended pipes
  • Repair of existing pipe systems by replacing short sections of pipe
  • An inexpensive option for unadopted (private) drainage pipes


Click here to see installation notes