Nibco 879 DWV Return Bend C x ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$255.03
Nibco 879 DWV Return Bend C x C - Cast

Nibco 879 DWV Return Bend C x C - Cast

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Model: E535400

In Stock (leaves warehouse same day if ordered before 3pm ET)

$255.03
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The return bend features solder cups. The fitting provides a water seal, preventing unwanted gases to enter the dwelling. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. In addition to its inherent qualities of beauty, durability and low maintenance, copper's reusability makes it an ideal application in sustainable projects. NIBCO® copper fittings are manufactured in an ISO 9001 certified facility, and backed by a 50-year limited warranty. Because of its longstanding reputation for innovation and precision in design and manufacturing, NIBCO is the preferred brand in the industry.

  • Dezincification resistant
  • ASTM B584 Alloy C84400
  • Material and workmanship per ASME B16.23

Copper Fittings Installation Instructions

Manufacturer Resources

NIBCO Copper Fittings Catalog

Product Specs

All Application(s):
DWV Drain / Waste / Vent
All Basic Material:
Bronze
Classification:
Solder DWV Return Bends
End Connection:
Solder
Fitting Bend Angle:
180 Deg (1/2 Bend)
Metal End Connection Type:
C x C
Product Group:
Fitting
Product Type:
Solder DWV Return Bends
System Use:
Commercial Plumbing, Residential Plumbing
Product Subgroup:
Return Bend
Department:
Plumbing

Nibco E535400 – Frequently Asked Questions

1) What sizes does the Nibco 879 DWV return bend come in?
The Nibco 879 DWV return bend is offered in 1-1/4 inch (E535250), 1-1/2 inch (E535300), 2 inch (E535400), 2 x 1-1/2 inch reducing (E535410), and 3 inch (E535450). Sizes are copper tube sizes with solder cups on both ends, so they take DWV copper tube of the matching nominal size.
2) Is a return bend a 180 degree fitting, and what is it used for in a DWV system?
It is a full 180 degree bend, catalogued as a 1/2 bend, so the tube leaves running back parallel to where it came from. In drain, waste and vent work that geometry is what forms the water seal in a trap, keeping sewer gas out of the building.
3) Can I use the Nibco 879 return bend on a pressure water line?
No. This one is a DWV fitting, made for drain, waste and vent service only. For supply piping you need a pressure-rated copper fitting; DWV fittings are thinner-wall and are not intended for pressurized water.
4) Does the 2 inch by 1-1/2 inch return bend let me change pipe size mid-trap?
Yes. E535410 is the reducing version, with a 2 inch cup on one end and a 1-1/2 inch cup on the other, so you can make the 180 degree turn and step the line down in one fitting instead of adding a separate reducer.
5) Is the Nibco 879 return bend cast bronze or wrought copper?
Cast bronze, ASTM B584 alloy C84400, and dezincification resistant. Material and workmanship follow ASME B16.23, which is the standard for cast copper alloy solder joint DWV fittings.
6) What do I need to join a solder-cup DWV return bend?
Solder ends, so the joint is made with flux, solder and heat, not glue or a gasket. Slide the DWV copper tube into the cup and sweat it. No threads on this fitting, both ends are cups, so if you are tying into threaded or plastic pipe you will need a transition fitting.
7) Is this fitting approved for commercial buildings or just houses?
Both. The 879 return bend is listed for commercial and residential plumbing systems, and it is made in an ISO 9001 certified facility.
How fast can I get the Nibco E535400 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Nibco E535400 come with a warranty?
Absolutely. The Nibco E535400 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Nibco E535400?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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