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Nibco 601 copper coupling fitting two inch tube size

Nibco, Inc.

Nibco, Inc. 601 Coupling 2 In Drain Trap

SKU CH-3KMD-EATTW MPN 601

A 2-inch copper coupling connects drain piping in plumbing installations

  • TypeDrain Components
  • Copper coupling joins 2-inch drain lines securely
  • Wrought copper construction resists corrosion in plumbing systems
  • 601 model ensures correct fit for drainage applications
  • Coupling design allows straight pipe connections
  • Suitable for drain and trap installations

Copper Coupling for 2-Inch Tubing

This Nibco 601 coupling joins two lengths of 2-inch copper tube in drainage systems. The wrought-copper construction resists corrosion and meets standard plumbing requirements. It is supplied new and ready for solder installation.

Suitable for Drainage Repairs and New Runs

Plumbers and DIYers extending or repairing 2-inch copper drain lines will find this fitting matches the tube size. It is not intended for press-fit or threaded connections, nor for tubing of any other diameter.

Wrought Copper Coupling Without Stop

The fitting is a plain coupling with no internal stop, allowing tubes to pass through completely. This design suits repairs where a stop would interfere with pipe positioning.

Highlights

  • Copper coupling joins 2-inch drain lines securely
  • Wrought copper construction resists corrosion in plumbing systems
  • 601 model ensures correct fit for drainage applications
  • Coupling design allows straight pipe connections
  • Suitable for drain and trap installations

Specifications

TypeDrain Components
BrandNibco
Model601 2

Questions about this item

What size copper tubing do I need to connect to the 2-inch coupling?

The coupling fits 2-inch copper tube with a 2-1/8-inch outside diameter for sweat solder joints.

Can I use this coupling on existing copper pipe that has been in the wall for years?

Yes, clean the old pipe to bright copper, apply flux, and solder the coupling in place just like new tubing.

How do I verify the joint is watertight after soldering?

Pressurise the line with water, inspect the solder ring around each hub, and confirm no droplets appear at the fitting.

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