The HulkUniversal Coupling
One universal sewer and drain repair coupling per nominal size connects most common underground pipe materials — with serious strength, wide dimensional coverage and internally reinforced stainless steel shear rods.
One coupling. Multiple pipe connections.
When the pipe material is uncertain, the HULK keeps the job moving. Its wide dimensional range helps crews connect common sewer and drain pipe materials with one universal coupling per nominal size.
One coupling per nominal size connects most pipe materials.
Designed for the realities of underground repair work.
Available in the core sizes crews reach for most.
Stainless steel shear rods.
The HULK is reinforced internally with corrosion-resistant stainless steel rods to help resist pipe shift from soil, traffic or settlement. That reinforcement is what gives this coupling its muscle where underground connections need it most.
Below-ground approved.
Made for underground sewer and drain repair, the HULK brings heavy-duty construction to tough transitions and repair conditions. Use it when the job calls for a stronger, more versatile connection than a standard repair coupling.
Complies with IPC, UPC, ASTM C1173 and CSA B602. U.S. Patent No. D956937. Made in the USA.
Built to spec.
Key product details for quick review. Always verify final selection using current Fernco literature and the actual pipe outside diameter.
Construction
- Body
- Reinforced elastomer
- Reinforcement
- Internal stainless steel shear rods
- Clamps
- Stainless steel, high torque
Application
- Use
- Below-ground sewer & drain repair
- Best for
- Transitions, repairs, unknown pipe material
Sizes & coverage
- Sizes
- 4″–12″ (HULK4–HULK12)
- Materials
- Clay, cast iron, ductile iron, concrete, plastic, steel, Orangeburg, Duriron
Compliance
- Codes
- IPC, UPC
- Standards
- ASTM C1173, CSA B602
- Patent
- U.S. D956937
- Origin
- Made in the USA
HULK sizing.
One coupling per nominal size, each with a wide outside-diameter range. Confirm the actual pipe O.D. falls within the range for the size.
Size finder
Choose the material and size of the pipe on each side. The finder returns the HULK size that fits both pipes, plus any Strong Back RC coupling whose ends accept them. Plastic and steel use Schedule 40 (IPS) outside diameters.
See the HULK in action.
HULK resources.
Product literature, sales support and engineering information for the HULK Universal Coupling.
Common questions.
Selection, materials and compliance answers for the HULK.
What makes the HULK different from a standard coupling?
The HULK is a stainless steel reinforced universal coupling with a wider dimensional range. It is built for tough underground repair conditions where the pipe material or outside diameter can vary.
What pipe materials can the HULK connect?
One HULK coupling per nominal size connects most common sewer and drain pipe materials, including clay, concrete, ductile iron, Orangeburg, Duriron, cast iron, steel and plastic. Always confirm the actual pipe outside diameter falls within the range for the size.
Is the HULK approved for underground use?
Yes. The HULK is engineered for below-ground sewer and drain repair applications.
How do I select the correct HULK size?
Start with the nominal pipe size, then measure the actual outside diameter of the pipe and confirm it falls within the listed O.D. range for that HULK part number. The size finder on this page does this for you.
What standards does the HULK comply with?
The HULK complies with IPC, UPC, ASTM C1173 and CSA B602, and is covered by U.S. Patent No. D956937. It is made in the USA. Because it uses a high-torque clamp, the HULK is not AIS or BABA compliant.