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Gray cast iron reducing coupling 3 by 4 inches socket ends

Zoro Select

Zoro Select 222144 Reducing Coupling 3" x 4" Pipe

SKU CH-EZGT-AM27D

Connects 3-inch and 4-inch pipes using a straight, grey cast-iron reducing coupling with socket ends

  • Connects 3 in and 4 in pipes with socket ends
  • Cast iron body with bitumen coating resists corrosion
  • Class 20 rating for standard drainage duty
  • Straight reducing coupling simplifies pipe transitions
  • Zero psi operating pressure suits gravity flow systems

Zoro Select 222144 Reducing Coupling

The Zoro Select 222144 is a straight reducing coupling cast from Class 20 gray cast iron with a bitumen coating. It connects a 3 inch socket to a 4 inch socket in drainage or vent systems. The fitting is manufactured to standard dimensions for solvent weld or push-fit installation.

Suitable for cast iron soil pipe transitions

This coupling suits installers joining 3 inch and 4 inch cast iron soil pipes in gravity flow applications. It is not for pressurised water lines, gas distribution or high temperature services. Builders needing a flexible rubber connector or a coupling for copper tube should select a different product type.

Class 20 gray cast iron construction

The coupling body is cast from Class 20 gray iron and coated with bitumen for corrosion protection. This material defines the fitting's suitability for standard drainage and vent piping. Verify that the pipe schedule and joint method match the socket dimensions before purchase.

How it compares

Measured against everything we stock in Garden Hoses & Pipe Tubing, at today’s prices. Recalculated every night.

Price $23.99
Typical for this category: the median of 973 items is $21.99.

Specifications

Product
Brand nameZORO SELECT

Questions about this item

How do I confirm the Zoro Select 222144 reducing coupling is sealed correctly after installation?

Pressurise the line and check both the 4 7/16 in and 3 13/32 in socket joints for leaks; the cast-iron bitumen coating should show no seepage at Class 20 rating.

What comes with the Zoro Select 222144 reducing coupling and what must I supply?

The coupling itself is supplied; you must provide compatible 3 in and 4 in pipes, joint sealant or gaskets, and any required hangers or supports.

Which Zoro Select 222144 version suits a 3 in to 4 in cast-iron drainage line?

This single model is a straight Class 20 gray cast-iron reducer with 4 7/16 in and 3 13/32 in female sockets, designed for that exact transition.

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