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
Black coupling tube six inches long with threaded ends

Legend Valve

Legend Valve 350-513 6" Black Coupling tubing

SKU CH-3XDV-EZ14B

Six-inch black coupling joins two female-threaded pipes for plumbing systems

  • 6-inch length fits standard plumbing connections
  • Black finish resists corrosion in damp environments
  • Female NPT threads on both ends simplify installation
  • Legend Valve brand ensures professional-grade reliability
  • California Proposition 65 warning included for chemical safety awareness

Product Identity

The Legend Valve 350-513 is a 6-inch black coupling designed for plumbing systems. It connects two female NPT threads in a straight line. This part suits installers joining pipe sections in residential or commercial water lines.

Critical Specification

The coupling measures 6 inches in overall length with female NPT threads on both ends. This dimension determines whether the fitting bridges the gap between your existing pipes. Verify the required spacing before ordering.

Operational Factors

The black finish provides standard corrosion resistance for typical indoor plumbing environments. No moving parts or electrical components are present, so noise and power draw are not applicable. The fitting handles normal water pressure without thermal concerns.

Highlights

  • 6-inch length fits standard plumbing connections
  • Black finish resists corrosion in damp environments
  • Female NPT threads on both ends simplify installation
  • Legend Valve brand ensures professional-grade reliability
  • California Proposition 65 warning included for chemical safety awareness

Specifications

BrandLEGEND VALVE

Questions about this item

What does the 6-inch length mean once the coupling is installed?

The 6-inch measurement is the overall length of the black coupling, so it occupies that much space between the two female NPT connections in your piping run.

How does the FNPT x FNPT thread standard affect what I can connect?

Both ends have female National Pipe Taper threads, so you must supply male NPT fittings or nipples to join this coupling to pipe or equipment.

What clearance or mounting features does the coupling need to fit?

It requires enough straight run to accommodate the 6-inch body plus the engagement length of the male threads you screw into each end.

Also in this aisle

People compared these

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