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Galvanized malleable iron reducer coupling with female NPT threads

Value Brand

Value Brand 1-1/2" x 1-1/4" FNPT Galvanized Reducer

SKU CH-XMK5-WX1MZ

Galvanised malleable-iron reducing coupling joins 1-1/2 in and 1-1/4 in female NPT threads at Class 300 rating

  • Galvanised malleable iron resists corrosion in water lines
  • Class 300 pressure rating handles demanding plumbing systems
  • FNPT threads on both ends create secure pipe connections
  • Reduces 1-1/2 in to 1-1/4 in for flexible system design
  • California Proposition 65 warning informs safe handling practices

Reducer for 1-1/2" to 1-1/4" FNPT

This galvanised malleable iron reducing coupling connects a 1-1/2 inch female NPT pipe to a 1-1/4 inch female NPT pipe. It is rated for Class 300 service. The fitting suits plumbing installations that require a secure transition between these two specific thread sizes.

Class 300 pressure rating

The single specification that determines suitability is the Class 300 pressure rating. This defines the maximum allowable pressure for the fitting at a given temperature. Verify that your system pressure and temperature fall within this class before purchasing.

Threaded installation with sealant

Installation requires applying PTFE tape or pipe thread sealant to the male threads before engaging the female NPT ends. Over-tightening can crack the malleable iron casting. Ensure the pipe threads are clean and undamaged to prevent leaks at the joint.

How it compares

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

Price $12.99
Cheaper than about 63% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZoro Select

Questions about this item

What does the Class 300 rating mean for everyday plumbing use?

Class 300 indicates the fitting is rated for 300 psi working pressure, so it handles typical residential and light-commercial water lines without issue.

How do the 11-1/2 NPT threads on each end affect sealing?

Both ends use 11-1/2 threads per inch NPT taper, creating a reliable metal-to-metal seal when tightened with thread tape or pipe dope.

What clearance is needed to thread this galvanized reducer onto existing pipe?

The malleable iron body requires enough space for a pipe wrench to engage the hex flats; allow room for at least one full turn past hand-tight.

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