Nibco, Inc. 603R Reducing Adapter trap
Copper reducing adapter connects 1-inch to 3/4-inch pipes in plumbing systems
- Product 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.
How it compares
Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.
- Price $8.99
- Cheaper than about 86% of the 4,240 comparable items (median $31.99).
Specifications
| Product | |
|---|---|
| Brand name | Nibco |
| Model name | 603R 1 × 3/4 |
| Product type | Drain Components |
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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