Pasco 1056-100 Fernco Flexible Coupling 6x4 Inch

Product Description

The PASCO 1056-100 is a Fernco-style flexible reducing coupling designed to connect 6-inch pipe to 4-inch pipe in drain, waste, and vent (DWV) systems. The flexible sleeve construction allows it to join pipes of different materials without rigid fittings or solvent cement. Plumbers and pipefitters use this coupling for repairs, retrofits, and new rough-in work where a permanent, leak-resistant transition between mismatched pipe sizes is required. At 0.18 pounds, it is lightweight and easy to handle in tight spaces.

This coupling is suited for residential and light commercial plumbing applications, including sewer lateral connections, stack transitions, and underground or above-grade DWV piping. It is commonly installed where cast iron, PVC, ABS, or clay pipe systems meet and a reducing transition is needed. The flexible body accommodates minor misalignment between pipe ends, making it practical for repair scenarios where pipe ends may not be perfectly aligned.

Key Features

• Reduces 6-inch pipe to 4-inch pipe in a single fitting
• Flexible sleeve construction accommodates minor pipe misalignment
• Lightweight at 0.18 pounds for easy handling in confined areas
• Suitable for use across multiple pipe materials including PVC, ABS, cast iron, and clay
• No solvent cement or heat required for installation

Compatibility

Designed as an OEM-style flexible reducing coupling for 6-inch to 4-inch DWV pipe connections in residential and light commercial plumbing systems.

Installation Notes

Installation is performed by licensed plumbers in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off all flow to the affected drain line before beginning work and ensure pipe ends are clean, deburred, and free of sharp edges before inserting into the coupling sleeve. Stainless steel clamps should be tightened with a nut driver or clamp tool to secure the sleeve against both pipe ends. Do not over-tighten the clamps to the point of distorting the flexible sleeve.

Technical Specifications

• Pipe Size: 6 x 4 inches
• Weight: 0.18 pounds
• UPC Code: 18578015432

Standard Information

• Brand: PASCO
• Manufacturer Part Number: 1056-100