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
Bronze square head plug with threaded end

Legend Valve

Legend Valve 310-189NL 2-1/2" Bronze Square Head Plug No Lead

SKU CH-03VQ-Y3QQ5

A 2-1/2" threaded no-lead cast bronze square head plug for sealing pipe ends

  • No-lead bronze protects drinking water
  • 2-1/2 inch MNPT threads fit standard pipe
  • Square head allows wrench tightening
  • Cast bronze construction resists corrosion
  • California Prop 65 chemical warning applies

Bronze Square-Head Plug 2-1/2" MNPT

This no-lead cast bronze plug provides a solid closure for 2-1/2 inch male NPT threaded openings in potable-water and hydronic systems. The square head allows positive engagement with a standard wrench for reliable installation and removal.

Threaded Bronze Interface Limits

The MNPT taper threads seal by metal-to-metal contact and require compatible female NPT fittings; mismatched thread forms or damaged threads will leak. Bronze construction resists dezincification in aggressive water but is not rated for steam service or high-pressure gas lines.

No-Lead Compliance Decides Suitability

California Proposition 65 warnings confirm the alloy contains listed chemicals, so the plug meets no-lead requirements for drinking-water installations but cannot be used where a zero-lead certification is mandated.

Highlights

  • No-lead bronze protects drinking water
  • 2-1/2 inch MNPT threads fit standard pipe
  • Square head allows wrench tightening
  • Cast bronze construction resists corrosion
  • California Prop 65 chemical warning applies

Specifications

BrandLEGEND VALVE

Questions about this item

Which size of the 310-189NL plug fits my 2-1/2 inch threaded opening?

This model is manufactured in a single 2-1/2 inch MNPT size, so there is no alternative capacity to select for this part number.

What does the no-lead bronze construction mean once the plug is installed in a potable-water line?

The cast bronze body meets no-lead requirements, making it suitable for drinking-water systems where lead content is regulated.

Does the square-head design work with standard pipe wrenches or do I need a special tool?

The square head accepts common adjustable or open-end wrenches used for threaded pipe fittings, allowing straightforward installation and removal.

Also in this aisle

People compared these

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