FDM’s New single-wall/dual-wall external snap coupler connects 4″ corrugated pipe.

  • Pure Virgin 100% HDPE with no recycled materials
  • FDM Lifetime Guarantee that it will not break
  • 8 barbed connection points
  • No Tile Tape or Glue Needed!
  • Mold Injected NOT blow molded
  • Extra Heavy Duty