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Copper reducing tee fitting with three openings

Nibco, Inc.

Nibco, Inc. U611 3/4x3/4x1/2 Reducing Tee

SKU CH-0N4R-SRE8G MPN U611

Copper reducing tee connects 3/4 and 1/2 inch pipes in drainage systems

  • TypeDrain Components
  • Reducing tee connects three pipe sizes in one fitting
  • Copper construction resists corrosion for long service life
  • Tee shape directs flow between main and branch lines
  • 3/4 x 3/4 x 1/2 inch dimensions suit standard plumbing
  • Model U611 identifies the exact fitting for reordering

Reducing Tee for Copper Drain Systems

The Nibco U611 is a copper reducing tee designed for drain and trap installations where a branch line steps down from a larger run. It joins three tube ends in a single fitting to simplify layout changes in residential or light commercial plumbing. The tee shape directs flow between the main line and the reduced outlet without additional couplings.

3/4 x 3/4 x 1/2 Inch Tube Size

The critical specification is the tube size of 3/4" x 3/4" x 1/2", which defines the two equal run ports and the smaller branch port. This exact combination determines whether the fitting matches the existing copper tubing diameters in the drain assembly. Mismatched sizes will prevent a proper sweat joint and require extra adapters.

Handles Standard Drain Branch Connections

The fitting comfortably handles typical drain branch connections where a half-inch line feeds into a three-quarter-inch main. It runs out when the system calls for a different reduction ratio or a non-copper material that cannot be soldered to this fitting. The copper construction suits standard drain temperatures and pressures found in the specified applications.

Highlights

  • Reducing tee connects three pipe sizes in one fitting
  • Copper construction resists corrosion for long service life
  • Tee shape directs flow between main and branch lines
  • 3/4 x 3/4 x 1/2 inch dimensions suit standard plumbing
  • Model U611 identifies the exact fitting for reordering

Specifications

TypeDrain Components
BrandNibco
ModelU611 3/4x3/4x1/2

Questions about this item

How does the 3/4 x 3/4 x 1/2 inch reducing tee affect flow in a copper plumbing system?

This copper reducing tee connects two 3/4 inch lines to a 1/2 inch branch, allowing a smaller outlet while maintaining the main run diameter for balanced distribution.

What connection standard does the U611 copper tee use for the 3/4 and 1/2 inch tube sizes?

The fitting is made for sweat-solder joints on copper tubing, matching standard CTS dimensions so each end accepts the corresponding nominal tube size.

What physical space and pipe preparation does the U611 reducing tee need for installation?

It requires straight copper tube ends cut to the fitting depth on all three ports, plus enough clearance around the tee body for a torch and solder application.

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