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Copper reducing adapter with smooth metallic finish

Nibco, Inc.

Nibco, Inc. 603R Reducing Adapter trap

SKU CH-6XJ2-VSGF6 MPN 603R

Copper reducing adapter connects 1-inch to 3/4-inch pipes in plumbing systems

  • TypeDrain Components
  • Copper construction resists corrosion and avoids leaching toxins into water
  • Reducing adapter joins 1 in and 3/4 in copper tubing
  • Wrot copper material provides strength for durable plumbing connections
  • Adapter fitting simplifies transitions between different pipe diameters
  • Lead-free composition supports safe potable water installations

Reducing Adapter — Copper CxFNPT

This Nibco 603R reducing adapter joins a one-inch copper tube to a three-quarter-inch female NPT thread. The wrot copper body resists corrosion and does not leach toxins into water or gas lines. It is designed for pressure-rated plumbing installations where a straight size transition is required.

Installers needing a 1" to 3/4" copper-to-thread

Suitable for plumbers and maintenance technicians making a direct copper-to-FNPT reduction in hot or cold water distribution. Not intended for applications that require a flare, compression or press connection, nor for systems demanding a different tube size or thread standard.

CxFNPT wrot copper reducing adapter

The defining specification is the CxFNPT wrot copper construction with a one-inch tube end and three-quarter-inch female NPT end. This exact interface determines whether the fitting matches the pipe and thread standard on site.

Highlights

  • Copper construction resists corrosion and avoids leaching toxins into water
  • Reducing adapter joins 1 in and 3/4 in copper tubing
  • Wrot copper material provides strength for durable plumbing connections
  • Adapter fitting simplifies transitions between different pipe diameters
  • Lead-free composition supports safe potable water installations

Specifications

TypeDrain Components
BrandNibco
Model603R 1x3/4

Questions about this item

How can I confirm the 603R Reducing Adapter is working correctly after installation?

Check for water-tight joints at the 1-inch and 3/4-inch connections and verify no leaks appear when the system is pressurised.

What comes with the 603R Reducing Adapter and what must I purchase separately?

The adapter itself is supplied; you will need compatible copper tubing, flux, solder and any required hangers or supports.

Which version of the 603R Reducing Adapter should I select for a 1-inch to 3/4-inch copper transition?

Choose the 603R model marked 1x3/4 In, which is the CxFNPT wrot copper reducing adapter for that size change.

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