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
Small brass union fitting with female threaded ends, hexagonal body, golden metal finish

Value Brand

Value Brand 1/4 in Female NPT Brass Union Class 125 200 psi

SKU CH-4V3K-73444

Connects two 1/4 in Female NPT pipes with Class 125 brass rated for 200 psi

  • TypeOther
  • Brass construction resists corrosion for long service life
  • Class 125 rating suits standard low-pressure plumbing systems
  • 200 psi maximum operating pressure handles typical water supply demands
  • Female NPT threads on both ends enable direct pipe connection
  • California Proposition 65 warning indicates chemical content awareness

Brass Union for Threaded Pipework

This Zoro Select union joins two sections of pipe or fittings that both carry a 1/4 inch female NPT thread. The brass body is rated to Class 125 and handles a maximum operating pressure of 200 psi. It suits plumbing and light industrial installations where a removable joint is required. The fitting is supplied new and ready for assembly with standard thread sealant.

California Proposition 65 Notice

The product carries a Proposition 65 warning because it contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. No additional accessories, sealant or tools are bundled with the fitting. Installers should follow local codes and use appropriate personal protection when handling and joining the components.

Pressure Rating and Sizing Limits

The 200 psi rating provides headroom for typical water and compressed air lines operating well below that limit. The 1/4 inch NPT thread size restricts flow capacity compared with larger bore fittings, so the union is not suited to high volume mains or process lines demanding greater throughput. It performs reliably within its stated class and pressure envelope.

Highlights

  • Brass construction resists corrosion for long service life
  • Class 125 rating suits standard low-pressure plumbing systems
  • 200 psi maximum operating pressure handles typical water supply demands
  • Female NPT threads on both ends enable direct pipe connection
  • California Proposition 65 warning indicates chemical content awareness

Specifications

BrandZORO SELECT
TypeOther

Questions about this item

Will the brass union need periodic re-sealing or replacement of internal components under normal plumbing use?

The union is a solid brass fitting with no internal moving parts or seals that require routine maintenance; it remains serviceable as long as the threads and seating faces stay undamaged.

What pressure or temperature limit will be reached first during continuous operation at the rated 200 psi?

The 200 psi maximum operating pressure is the primary limit; Class 125 rating aligns with this pressure ceiling, so sustained use should not exceed 200 psi.

Does the brass union generate noticeable heat or noise when water flows through it all day at 200 psi?

Brass conducts heat but the union itself produces no mechanical noise; any temperature rise comes from the fluid, not the fitting.

Also in this aisle

People compared these

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