Fernco Inc P22U-205 Cast Iron Hub Donut 2 Inches

Product Description

The FERNCO INC P22U-205 is a 2-inch cast iron hub donut fitting designed to connect 2-inch service weight cast iron pipe to the plain end of 2-inch DWV Schedule 40 plastic pipe. This transition fitting bridges two common drain pipe materials at the hub joint, allowing plumbers to make a secure, leak-resistant connection without cutting back to a full coupling. It is a standard component in residential and light commercial drain, waste, and vent systems where cast iron and plastic piping meet at a hub interface.

This hub donut is used in DWV applications where service weight cast iron pipe transitions to Schedule 40 PVC or ABS plastic pipe. Typical installations include basement drain tie-ins, stack transitions, and retrofit work where existing cast iron infrastructure is being extended or repaired with plastic pipe. Licensed plumbers handling drain and waste system modifications will encounter this fitting in both new rough-in work and older system repairs.

Key Features

• Connects 2-inch service weight cast iron pipe to 2-inch DWV Schedule 40 plastic pipe
• Hub-style donut design seats into the bell end of cast iron pipe for a clean transition
• Suitable for residential and light commercial DWV drain, waste, and vent systems
• Sold in a package quantity of 20 units per carton

Compatibility

Designed for use with 2-inch service weight cast iron hub pipe and the plain end of 2-inch DWV Schedule 40 plastic pipe. Intended as a standard DWV transition fitting for drain, waste, and vent piping systems.

Installation Notes

Installation is performed by licensed plumbers in accordance with the International Plumbing Code (IPC) or applicable local plumbing code. Shut off and drain any active lines before beginning work. Seat the donut firmly into the cast iron hub before inserting the plain end of the plastic pipe. Do not apply excessive force that could crack the cast iron hub or deform the fitting during assembly.

Technical Specifications

• Pipe Size: 2 inches
• Connection Type: Cast iron hub to plain-end DWV Schedule 40 plastic pipe
• Pipe Compatibility: Service weight cast iron to DWV Schedule 40 plastic
• Package Quantity: 20 units
• Weight: 5 pounds
• Unit of Measure: EA

Standard Information

• Brand: FERNCO INC
• Manufacturer Part Number: P22U-205