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Brass flare coupling with hexagonal nut and smooth body

Legend Valve

Legend Valve 313-604NL 3/4" x 5/8" T-4110NL FL x XS coupling

SKU CH-A47J-0CX2W

A 3/4" x 5/8" no-lead bronze flare-to-extra-strong coupling for plumbing connections

  • No-lead bronze protects water quality
  • 3/4" flare to 5/8" extra-strong coupling fits mixed pipe sizes
  • T-4110NL model meets California Proposition 65 requirements
  • New condition ensures full factory performance
  • Legend Valve brand trusted by plumbing professionals

Legend Valve 313-604NL Coupling

The Legend Valve 313-604NL is a no-lead bronze coupling designed to connect a 3/4 inch flare fitting to a 5/8 inch extra-strong pipe end. It suits plumbers and installers working on potable water lines where lead-free materials are required. The T-4110NL model provides a direct transition between these two specific connection types.

Compatibility Check

Before ordering, verify that the existing line uses a 3/4 inch flare male thread and a 5/8 inch extra-strong pipe size. Confirm the system pressure rating matches the coupling class for the intended application. Ensure the pipe material is compatible with bronze to avoid galvanic corrosion in the assembly. California Proposition 65 warnings apply to this product.

Installation Context

This coupling joins two dissimilar pipe ends without requiring an additional adapter or reducer fitting. It frees up space in tight runs by combining the transition into a single compact body. The flare end seals with a nut and cone while the extra-strong end threads into a female fitting. No special tools beyond standard pipe wrenches are needed for assembly.

Highlights

  • No-lead bronze protects water quality
  • 3/4" flare to 5/8" extra-strong coupling fits mixed pipe sizes
  • T-4110NL model meets California Proposition 65 requirements
  • New condition ensures full factory performance
  • Legend Valve brand trusted by plumbing professionals

Specifications

BrandLEGEND VALVE

Questions about this item

Does the Legend Valve 313-604NL coupling include any extra fittings or sealant in the box?

The package contains only the 3/4" x 5/8" T-4110NL flare-by-extra-strong coupling. Pipe thread sealant, additional adapters or tools must be purchased separately.

Should I choose the 313-604NL model or a different size for my 3/4-inch flare and 5/8-inch extra-strong pipe?

This 313-604NL fitting is built specifically for a 3/4-inch flare connection on one end and a 5/8-inch extra-strong pipe on the other, so select it when those exact sizes match your installation.

What does the T-4110NL no-lead bronze rating mean once the coupling is installed in a potable-water line?

T-4110NL certifies the bronze body meets no-lead requirements for drinking-water systems, and the Proposition 65 notice flags a chemical known to California to cause cancer or reproductive harm.

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