Fernco 1056-150 1 Flexible Pvc Clamp Coupling 1 to 1/2 Inch

Product Description

The FERNCO 1056-150 1 is a flexible PVC clamp coupling designed to create a leak-proof transition between 1-inch and 1/2-inch pipe. This type of coupling uses a shear ring and stainless steel clamps to compress a flexible PVC sleeve against the pipe ends, forming a watertight mechanical seal without solvent cement or special tools. Plumbers and pipefitters install this fitting in drain, waste, and vent (DWV) applications where rigid couplings are impractical or where pipe materials differ. The sleeve conforms to minor surface irregularities, giving consistent sealing performance across a range of pipe materials.

This coupling is suited for residential and light commercial plumbing repair and new installation work. It is commonly used when connecting mismatched pipe materials such as PVC to cast iron, clay, or ABS in DWV systems. The clear part number, size, and compatible pipe material markings on the coupling body help reduce installation errors on the job. This fitting is a practical solution for retrofit and repair work where cutting in a rigid fitting is not feasible.

Key Features

• Flexible PVC sleeve conforms to pipe surface irregularities for a consistent, leak-proof seal
• Transitions between 1-inch and 1/2-inch pipe ends
• Compatible with virtually any pipe material including PVC, ABS, cast iron, clay, and copper
• Clearly marked with part number, size, and compatible pipe materials for easy field identification
• No solvent cement required — installs with standard clamp hardware
• Case pack of 40 units for stocking or multi-job supply

Compatibility

Designed as an OEM-style flexible coupling for DWV pipe connections. Compatible with virtually any pipe material; consult part markings for specific pipe material guidance.

Installation Notes

Installation is typically performed by a licensed plumber in accordance with IPC and applicable local plumbing codes. Before installing, shut off the water supply and relieve any system pressure. Pipe ends should be clean, free of burrs, and cut square before the coupling sleeve is seated. Torque clamps evenly to ensure a uniform seal — do not over-tighten to the point of distorting the sleeve.

Technical Specifications

• Inlet Size: 1 inch
• Outlet Size: 1/2 inch
• Material: Flexible PVC
• Case Pack Quantity: 40 units
• Overall Case Dimensions: 11.875 inches x 9.875 inches x 10.375 inches

Standard Information

• Brand: FERNCO
• Manufacturer Part Number: 1056-150 1