Fernco 4 in. x 4 in. Flexible Corrugated Coupling

The Fernco 4 in. x 4 in. Flexible Corrugated Coupling provides a dependable and leak-proof mechanical connection between corrugated polyethylene drainage pipes and plastic sewer, drain, or DWV piping. Engineered for exceptional durability and flexibility, this coupling easily connects drainage and irrigation tubing to standard PVC sewer lines, ensuring smooth and reliable flow management. Constructed from high-grade elastomeric PVC and equipped with corrosion-resistant 300-series stainless steel clamps, this flexible coupling is underground rated and resists chemicals, ultraviolet rays, and fungus growth. It conforms to rigorous industry standards for long-lasting performance in residential, agricultural, and commercial drainage systems.