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Brass plumbing adapter with transparent plastic insert and PEX connection

Legend Valve

Legend Valve 115-303NLX 1/2" NL TMV PEX ADPT w/o CHECK bathware

SKU CH-6FZC-B0YBY

A 1/2-inch no-lead thermostatic mixing valve PEX adapter without an integral check valve, supplied new for potable-water bathware installations

  • Size1/2 in
  • Product colorTransparent
  • Product typePipes, Valves & Fittings
  • Lead-free brass construction meets no-lead plumbing standards
  • 1/2 inch PEX adapter fits standard supply lines
  • Thermostatic mixing valve delivers safe blended temperature
  • No check valve allows unrestricted flow direction
  • California Proposition 65 warning for chemical awareness

1/2" NL TMV PEX Adapter

This Legend Valve adapter connects 1/2 inch PEX tubing to a thermostatic mixing valve without an integrated check valve. It is a plumbing component designed for hot and cold water distribution systems in residential or light commercial installations. The transparent body allows visual confirmation of flow.

Installers fitting TMV units

Suits plumbers and contractors assembling or repairing thermostatic mixing valve stations where a separate check valve is preferred or already present downstream. Not suitable for systems requiring an integrated backflow preventer at the adapter connection. Buyers needing a built-in check function must select a different fitting.

1/2 inch PEX connection size

The single specification determining compatibility is the 1/2 inch nominal PEX connection combined with the TMV adapter configuration. Verify that the valve port and tubing match this exact size and type before purchase. The product carries California Proposition 65 warnings for cancer and reproductive harm.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 84% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameLEGEND VALVE
Product colorTransparent
Product typePipes, Valves & Fittings
Size & build
Size1/2 in

Questions about this item

What does the 1/2" size mean when I install this valve?

The 1/2" designation matches standard PEX tubing and fittings, so it connects directly to half-inch supply lines without reducers.

How does the PEX adapter interface affect the connection?

The PEX adapter uses a crimp or clamp ring system that seals on the tubing's outer diameter, creating a permanent joint that does not require soldering.

What clearance do I need behind the wall for this fitting?

The compact body fits within a standard 2 x 4 stud bay, leaving room for the crimp tool and insulation around the joint.

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