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Galvanised malleable iron reducing coupling with tapered threads

Value Brand

Value Brand Reducing Coupling Malleable Iron Galvanized Class 150 3 in NPT 1 1/4 in NPT

SKU CH-MWM3-ADBZR

A galvanized malleable iron reducing coupling rated Class 150 joins 3 in NPT to 1 1/4 in NPT pipe threads

  • Reduces pipe diameter from 3 in to 1 1/4 in NPT
  • Malleable iron construction provides mechanical strength for plumbing systems
  • Galvanized coating resists corrosion in water supply applications
  • Class 150 pressure rating suits standard residential and commercial lines
  • Female NPT threads on both ends allow direct threaded connections

Reducing Coupling Malleable Iron Galvanized

This Value Brand reducing coupling connects a 3 in NPT female thread to a 1 1/4 in NPT female thread. It is made from malleable iron with a galvanized finish and rated for Class 150 service. The fitting is new and supplied by Zoro Select for plumbing installations.

Fits Into Threaded Pipe Systems

The coupling joins two different pipe sizes using standard NPT threads on both ends. Its galvanized coating resists corrosion in water or air lines. No special tools beyond normal pipe wrenches are required, and the straight body keeps the run compact within the assembly.

For Plumbers Reducing Pipe Diameter

Installers who need to step down from a 3 in line to a 1 1/4 in line will find this coupling suitable. It is not intended for systems that require a different thread standard, a higher pressure class, or a non-galvanized material. Buyers needing other size combinations should look elsewhere.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $20.99
Pricier than about 55% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZoro Select

Questions about this item

Will the Class 150 pressure rating hold up on a main water line running continuously?

The Class 150 rating means this malleable iron coupling is rated for 150 psi working pressure, suitable for sustained residential or light commercial water service at that pressure.

Does the galvanized malleable iron body run hot or make noise when water flows all day?

Malleable iron does not generate heat or noise; the coupling simply transmits fluid, so temperature and sound depend entirely on the piping system and flow velocity, not the fitting itself.

What pipe threads must I already have to install this 3 inch by 1-1/4 inch NPT reducing coupling?

You need one pipe end with 3 inch NPT male threads and the other with 1-1/4 inch NPT male threads; both must be clean, tapered NPT threads to seal properly with the female threads inside this coupling.

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