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
Brass plumbing coupling with threaded and smooth ends

Legend Valve

Legend Valve 313-614NL 3/4 x 5/8 T4111NL MIP x XS coupling

SKU CH-688H-H2BKV

A 3/4 x 5/8 inch no-lead bronze coupling connects male NPT to extra-strong pipe

  • No-lead bronze protects drinking water safety
  • MIP by extra-strong coupling fits secure joints
  • 3/4 by 5/8 sizing matches standard pipe runs
  • Prop 65 notice informs installer of chemical content
  • Legend Valve brand backs proven plumbing reliability

Legend Valve 313-614NL Coupling

This Legend Valve 313-614NL coupling connects a 3/4 inch male pipe thread to a 5/8 inch extra strong coupling using no-lead bronze construction. It is intended for plumbers and installers working on potable water lines where lead-free materials are required. The T-4111NL designation identifies the specific no-lead bronze fitting for compliant installations.

California Proposition 65 Notices

This product carries California Proposition 65 warnings for chemicals known to cause cancer and chemicals known to cause birth defects or other reproductive harm. The notices apply to the product as supplied and are disclosed for regulatory compliance. Installers should follow standard safety practices when handling and joining the fitting.

Replaces Standard Lead Bronze Couplings

This fitting upgrades from standard leaded bronze couplings to a no-lead bronze alternative for potable water systems. The jump is worthwhile when local codes or project specifications mandate lead-free components for drinking water supply. It is not suited for applications requiring different thread sizes, alternative materials or press-fit connections.

Highlights

  • No-lead bronze protects drinking water safety
  • MIP by extra-strong coupling fits secure joints
  • 3/4 by 5/8 sizing matches standard pipe runs
  • Prop 65 notice informs installer of chemical content
  • Legend Valve brand backs proven plumbing reliability

Specifications

BrandLEGEND VALVE

Questions about this item

How do I install the 3/4 x 5/8 T4111NL MIP x XS coupling and what step is often missed?

Thread the male NPT end into the female port using pipe-thread sealant on the threads only; the step often missed is skipping sealant or applying tape past the last thread, which can block flow or crack the fitting.

What maintenance or replacement will the no-lead bronze coupling need later?

The no-lead bronze body resists dezincification; inspect annually for green patina or seepage at the joint and replace the coupling if corrosion appears or after a freeze-thaw cycle that stresses the extra-strong wall.

What limit shows up first on the 3/4 x 5/8 T4111NL coupling under sustained pressure and temperature cycling?

The male NPT seal is the first limit; repeated thermal expansion can loosen the thread seal, so re-torque or re-seal the joint when you notice weeping rather than waiting for a steady drip.

Also in this aisle

People compared these

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