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Brass hex reducer fitting half inch FNPT quarter inch MNPT

Anderson Metals

Anderson Metals Brass Reducer FNPT x MNPT 1/2" x 1/4

SKU CH-PBP1-RSY0T

Brass reducer connects 1/2" FNPT to 1/4" MNPT, rated to 1200 psi and -65 to 250 °F

  • NSF 61 Annex G certified for potable water safety
  • Brass construction resists corrosion in plumbing systems
  • 1200 psi rating handles high-pressure applications
  • Temperature range from -65 to 250 degrees Fahrenheit
  • Compact 1 13/64 inch length fits tight spaces

Brass Reducer for Pipe Transitions

This Zoro Select brass reducer connects a 1/2 inch female NPT thread to a 1/4 inch male NPT thread. It is designed for plumbing and hydraulic systems requiring a secure step-down in pipe size. The fitting meets NSF 61 Annex G standards for potable water applications.

Upgrading from Mismatched Bushings

This single-piece fitting replaces improvised assemblies that stack multiple bushings or adapters to achieve the same size reduction. The jump is worth it when a leak-free joint with a 1200 psi pressure rating is required across a temperature range of -65 to 250 degrees Fahrenheit.

Simple Threaded Installation

Installation requires threading the male end into the female port and the female end onto the male pipe using appropriate sealant or tape. The 15/16 inch hex size allows standard wrench engagement. Over-tightening brass threads can cause cracking, so proper torque application is critical.

Highlights

  • NSF 61 Annex G certified for potable water safety
  • Brass construction resists corrosion in plumbing systems
  • 1200 psi rating handles high-pressure applications
  • Temperature range from -65 to 250 degrees Fahrenheit
  • Compact 1 13/64 inch length fits tight spaces

Specifications

BrandZORO SELECT

Questions about this item

What hex size wrench fits the 15/16 in hex on this brass reducer?

A 15/16 in open-end or adjustable wrench engages the hex flats; apply steady torque without cheater bars to avoid rounding the brass.

How do I seal the 1/2 in FNPT and 1/4 in MNPT threads without cracking the fitting?

Wrap PTFE tape clockwise on the male threads only, hand-tighten, then turn one to two full turns with a wrench; stop when resistance spikes.

When should I replace this reducer given the 1200 psi rating and -65 to 250 °F range?

Inspect annually for dezincification, thread deformation or leakage; replace immediately if white powdery deposits appear or if pressure tests exceed 1200 psi.

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