Any Pipes. Any Sizes.
Custom-built connections for large-diameter sewer pipe.Fernco Large Diameter Couplings are manufactured to match the specific outside diameters required for your sanitary or storm sewer application.
Not Pulled From a Shelf. Built for the Actual Pipes.
Large-diameter pipe systems do not always follow standard sizes. Fernco Large Diameter Couplings are manufactured to order using the exact outside diameter of each pipe.
- Custom Outside Diameters: Specify the measured O.D. of both pipes and Fernco manufactures the coupling for that exact connection.
- Multiple Pipe Materials: Connect clay, concrete, cast iron, ductile iron, plastic, steel, fiberglass, and other common sewer pipe materials.
- Large-Diameter Range: Custom-made configurations are available from 23.5" through 82.5".
- Repairs and Transitions: Designed for sanitary sewer repairs, storm sewer connections, rehabilitation work, alterations, and pipe material transitions.
- Jobsite Delivery: The completed coupling can be supplied directly to the project site.
Custom Connections Beyond a Standard Coupling.
When the outside diameters of the two pipes differ significantly, a Fernco bushing system can be paired with the custom coupling to create the required transition.
O.D. Differences From 1" to 12"
A Fernco bushing system is available when the difference between the two pipe outside diameters ranges from 1" through 12".
Built Around the Application
Provide the exact outside diameter and material of both pipes, along with the application details, to begin the custom coupling request.
Tell Us About the Connection
Submit the pipe outside diameters, materials, and application details. The Fernco team will help identify the correct custom Large Diameter Coupling for the project.
Request a Custom Coupling