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304 stainless steel reducing coupling with tapered threads, larger to smaller female ends

Legend Valve

Legend Valve 404-398 3" x 1-1/4" SS304 Reducing Coupling FNPT x FNPT

SKU CH-0PKC-T3XYY

A 304 stainless steel reducing coupling with FNPT threads joins 3 inch and 1-1/4 inch pipes

  • Corrosion-resistant piping with 304 stainless steel construction
  • Reduces flow from 3-inch to 1-1/4-inch NPT threads
  • Female NPT threads on both ends simplify installation
  • Industrial-grade coupling built for plumbing system durability
  • California Proposition 65 chemical warning applies to this product

3" x 1-1/4" Stainless Reducing Coupling

This Legend Valve 404-398 coupling joins a 3-inch female NPT pipe to a 1-1/4-inch female NPT pipe. The body is machined from 304 stainless steel for corrosion resistance in water, oil or gas lines. It is supplied new and intended for permanent threaded installations. California Proposition 65 warnings apply to chemicals in the product.

Installers reducing pipe size in industrial systems

The fitting suits plumbers and maintenance crews who need to step down from a 3-inch main to a 1-1/4-inch branch using standard NPT threads. It is not for installers who require a coupling between pipes of the same diameter, a male-threaded end, a welded joint or a material other than 304 stainless steel. Buyers needing different thread standards or pressure ratings should look elsewhere.

No bundled accessories or software included

The shipment contains only the reducing coupling itself. There are no gaskets, thread sealant, tools or documentation in the box. The absence of extras means the installer must supply any required pipe tape, compound or alignment equipment separately. This keeps the order focused on the single fitting.

Highlights

  • Corrosion-resistant piping with 304 stainless steel construction
  • Reduces flow from 3-inch to 1-1/4-inch NPT threads
  • Female NPT threads on both ends simplify installation
  • Industrial-grade coupling built for plumbing system durability
  • California Proposition 65 chemical warning applies to this product

Specifications

BrandLEGEND VALVE

Questions about this item

What pipe sizes must I already have to connect this 3" x 1-1/4" reducing coupling?

You need one pipe with a 3" female NPT thread and another with a 1-1/4" female NPT thread; the coupling joins those two sizes directly.

Will this SS304 coupling corrode if I thread it onto older galvanised or brass pipework?

The 304 stainless steel body resists galvanic corrosion better than plain steel, so it pairs safely with existing galvanised or brass NPT threads when proper thread sealant is used.

How can I confirm the joint is leak-free after I tighten the FNPT ends?

Pressurise the system to its working pressure and inspect both threaded connections; no visible seepage or pressure drop means the reducing coupling is sealing correctly.

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