Fernco 5002-43rc Strong-back Shielded Rc Coupling 4x3 in

Product Description

The FERNCO 5002-43rc is a Strong-Back shielded RC coupling designed to create a reliable, flexible connection between dissimilar pipe materials in sewer and drain systems. This fitting transitions a 4-inch pipe to a 3-inch pipe and accommodates clay, cast iron, plastic, and steel pipe types in a single connector. The stainless steel shield and clamps provide added rigidity and resistance to shear forces, making this coupling suitable for in-ground and above-grade drain applications where joint stability is critical. Licensed plumbers and drain technicians install this part as a code-compliant method of joining unlike pipe materials without cutting threads or welding.

This coupling is intended for residential and commercial sewer and drain piping where a 4-inch-to-3-inch transition between clay, cast iron, plastic, or steel pipe is required. Common install scenarios include sewer lateral repairs, stack-to-drain transitions, and pipe material changeovers during renovation or repair work. The flexible elastomeric sleeve conforms to minor surface irregularities and out-of-round pipe ends, reducing the need for perfectly prepared pipe surfaces before installation.

Key Features

• Transitions 4-inch pipe to 3-inch pipe in a single fitting
• Compatible with clay, cast iron, plastic, and steel pipe materials
• Strong-Back stainless steel shield resists shear and lateral forces at the joint
• Flexible elastomeric sleeve accommodates minor pipe irregularities and out-of-round ends
• Shielded RC coupling design suitable for buried and above-grade sewer and drain applications

Compatibility

Designed for use with 4-inch-to-3-inch clay, cast iron, plastic, and steel pipe connections in sewer and drain systems, as specified in the product description.

Installation Notes

Installation is performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off flow and isolate the line segment before beginning work. Clean and deburr pipe ends to remove sharp edges, dirt, and debris before seating the elastomeric sleeve. Tighten stainless steel clamp bands evenly and to the torque range specified on the coupling packaging or manufacturer installation sheet.

Technical Specifications

• Pipe Size (Larger End): 4 inches
• Pipe Size (Smaller End): 3 inches
• Compatible Pipe Materials: Clay, Cast Iron, Plastic, Steel
• Coupling Type: Shielded RC Flexible Coupling
• Application: Sewer and Drain

Standard Information

• Brand: FERNCO
• Manufacturer Part Number: 5002-43rc