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Black reducing coupling, 2-1/2 by 1 inch, female NPT threads

Legend Valve

Legend Valve 350-551 2-1/2 x 1 Black Reducing Coupling tubing

SKU CH-T01H-TKJTB

Black reducing coupling connects 2-1/2 inch and 1 inch FNPT pipes for plumbing systems

  • Black reducing coupling joins 2-1/2" and 1" FNPT threads
  • Legend Valve construction provides reliable plumbing performance
  • New condition ensures clean, undamaged threads for leak-free installation
  • SA black finish resists corrosion in demanding environments
  • California Proposition 65 warning indicates chemical safety awareness

2-1/2 x 1 Black Reducing Coupling

This Legend Valve 350-551 coupling connects a 2-1/2 inch female NPT thread to a 1 inch female NPT thread. It is built for plumbing systems that need to join pipes of different diameters. The black finish suits standard water, air or gas lines where a reducing fitting is required.

Replaces mismatched pipe sections

Use this fitting when you must transition directly from a larger 2-1/2 inch pipe to a smaller 1 inch pipe without adding extra nipples or bushings. The jump is worth it when a single, leak-free reduction saves labour and reduces potential leak paths in a new install or a repair.

Verify thread type and chemical compatibility

Confirm both pipe ends use female NPT threads before ordering. Check that the black coating material is compatible with the fluid or gas in your system, especially given the Proposition 65 notice regarding cancer and reproductive harm. Ensure your local code permits this fitting for the intended application.

Highlights

  • Black reducing coupling joins 2-1/2" and 1" FNPT threads
  • Legend Valve construction provides reliable plumbing performance
  • New condition ensures clean, undamaged threads for leak-free installation
  • SA black finish resists corrosion in demanding environments
  • California Proposition 65 warning indicates chemical safety awareness

Specifications

BrandLEGEND VALVE

Questions about this item

What pipe sizes does the 2-1/2 x 1 reducing coupling connect?

The fitting joins a 2-1/2 inch female NPT thread to a 1 inch female NPT thread in a straight black iron body.

Which thread sealant method works with the FNPT ends on this coupling?

Apply PTFE tape or pipe dope to the male threads only, then tighten until the joint feels firm; over-tightening can crack the cast iron.

How often should the coupling be inspected for corrosion or leakage?

Check the joint visually each year and after any pressure test; replace the fitting if rust scaling or seepage appears at the threads.

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