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
Malleable iron reducer, black threaded finish, 4 inch to 2 inch FNPT connections

Value Brand

Value Brand Reducer 4" x 2" FNPT Malleable Iron Class 150

SKU CH-HZ6Z-48SN9

A 4-inch to 2-inch malleable iron reducer with FNPT threads rated for Class 150 service

  • Malleable iron construction resists cracking under pressure
  • Class 150 rating suits standard plumbing systems
  • Female NPT threads connect without welding
  • 4-inch to 2-inch reduction joins different pipe sizes
  • Zoro Select brand identifies the manufacturer

4-inch by 2-inch malleable iron reducer

This Zoro Select reducer connects a four-inch female NPT pipe to a two-inch female NPT pipe. The fitting is made from malleable iron and rated for Class 150 service. It provides a straight, threaded transition between two different pipe diameters in plumbing systems.

Suits installers joining dissimilar NPT pipe sizes

The reducer fits applications that require a direct reduction from four-inch to two-inch threaded pipe. It is not intended for systems needing a different reduction ratio, a male-threaded connection, or a material other than malleable iron. Buyers requiring a higher pressure class or a different end configuration should look elsewhere.

No bundled accessories or software included

The product ships as a single fitting without gaskets, sealant, or additional hardware. Installers must supply their own thread sealant and any required pipe lengths. There is no software component associated with this mechanical plumbing part.

Highlights

  • Malleable iron construction resists cracking under pressure
  • Class 150 rating suits standard plumbing systems
  • Female NPT threads connect without welding
  • 4-inch to 2-inch reduction joins different pipe sizes
  • Zoro Select brand identifies the manufacturer

Specifications

BrandZoro Select

Questions about this item

What pipe sizes must the installer already have to connect this 4 in x 2 in FNPT reducer?

The reducer joins a 4 in female threaded pipe to a 2 in female threaded pipe, so both mating pipes need matching FNPT threads.

Can the Class 150 malleable iron reducer be used on the same line as older Class 150 fittings?

Yes, it shares the same Class 150 pressure rating and FNPT threading, so it threads directly into existing Class 150 components.

How can I confirm the reducer is seated correctly after installation?

When fully tightened, the 11 1/2 threads per inch on the 2 in end and 8 threads per inch on the 4 in end should be fully engaged with no visible gaps.

Also in this aisle

People compared these

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