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Brass dielectric union with female thread and sweat end

Legend Valve

Legend Valve 301-125NL 1" x 3/4" T571 No Lead Dielectric Union

SKU CH-1RS9-QACJX

A no-lead dielectric union joins 1" FNPT to 3/4" sweat connections to prevent galvanic corrosion

  • No-lead construction meets California Prop 65 requirements
  • Dielectric union prevents galvanic corrosion between dissimilar metals
  • 1" FNPT x 3/4" sweat connection fits mixed pipe sizes
  • T-571NL model rated for potable water systems
  • New Legend Valve fitting ready for installation

No-lead dielectric union for potable water

The Legend Valve 301-125NL joins a 1 inch female NPT thread to a 3/4 inch sweat connection without introducing lead into the water supply. It is intended for plumbers and facility managers who must meet no-lead requirements on potable-water lines.

Brass body with insulating barrier prevents

The dielectric union isolates dissimilar metals so electrolysis cannot degrade the joint over time. The sweat end accepts copper tube directly while the FNPT end mates with threaded pipe, giving a secure transition that holds pressure in daily service.

Ships direct from manufacturer

California warnings advise that the product contains chemicals identified as causing cancer and reproductive harm. Orders of 75 dollars or more qualify for free shipping from the factory, reducing lead time for contractors stocking multiple fittings.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 70% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameLEGEND VALVE

Questions about this item

What thread standard does the 1" female NPT end use, and what pressure rating does it cap at?

The 1" FNPT end follows the National Pipe Thread standard; the model number 301-125NL indicates a 125 psi working pressure limit.

What pipe sizes and joint types must the installer prepare for the 1" FNPT x 3/4" sweat union?

You need a 1" male NPT threaded pipe on one side and a 3/4" copper tube ready for sweat soldering on the other.

How is the dielectric union assembled, and which step is most often missed?

Insert the supplied insulating sleeve and gasket between the brass and steel halves before tightening; skipping the sleeve defeats the galvanic-corrosion protection.

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