We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Grey cast iron reducing coupling with two female socket ends, larger on one side

Zoro Select

Zoro Select 222140 Reducing Coupling 2" x 3" Pipe

SKU CH-7T8Y-6NH00

Cast iron reducing coupling connects 2 inch and 3 inch pipes with socket ends

  • Reduces pipe diameter from three to two inches
  • Cast iron construction resists corrosion in drainage systems
  • Bitumen coating protects exterior surfaces from moisture
  • Class 20 rating meets standard drainage requirements
  • Socket joints on both ends simplify installation
  • 222140 part number ensures correct reorder identification

Zoro Select 222140 Reducing Coupling

This Zoro Select 222140 reducing coupling connects a 2 inch pipe to a 3 inch pipe in straight runs. It is made from gray cast iron with a bitumen coating and meets Class 20 specifications. Plumbers and maintenance crews use it when joining dissimilar pipe sizes in drainage or low-pressure systems.

Socket Ends With Bitumen Coating

Both ends feature female socket connections sized at 2 13/32 inches and 3 13/32 inches respectively. The bitumen coating helps protect the cast iron from corrosion in buried or damp installations. No gaskets, bolts or sealing compounds are included in the package. The fitting carries a 0 psi maximum operating pressure rating.

Simple Push Fit On Prepared Pipe

Installation requires cleaning the pipe ends and pushing them fully into each socket for a secure joint. The heavy cast iron body demands proper support so the pipes do not shift after assembly. It is not suited for pressurised lines or applications needing a mechanical restraint. Builders needing threaded or flanged transitions should select a different fitting type.

Highlights

  • Reduces pipe diameter from three to two inches
  • Cast iron construction resists corrosion in drainage systems
  • Bitumen coating protects exterior surfaces from moisture
  • Class 20 rating meets standard drainage requirements
  • Socket joints on both ends simplify installation
  • 222140 part number ensures correct reorder identification

Specifications

BrandZORO SELECT

Questions about this item

Does the cast-iron body need periodic coating to resist corrosion?

The coupling is supplied with a bitumen coating on gray cast iron; inspect the coating during routine system checks and reapply a compatible sealant if the surface shows wear or damage.

What pressure limit governs continuous service?

The manufacturer lists a maximum operating pressure of 0 psi, so the fitting is not rated for pressurised lines and should only be used in gravity or vent applications.

How much heat does the fitting add to a pipe run?

The cast-iron construction adds no active heat; it simply conducts the temperature of the fluid passing through it, so sustained use does not raise the line temperature beyond the fluid itself.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.