Nibco 814 DWV Test Tee C x C x...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$221.56
Nibco 814 DWV Test Tee C x C x Cleanout w/Plug - Cast

Nibco 814 DWV Test Tee C x C x Cleanout w/Plug - Cast

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Model: E159100

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

$221.56
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The test tee features solder cups and a cleanout with plug. The fitting provides a means of clearing potential clogs in certain portions of the drainage system. 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 Tees
End Connection:
Threaded
Metal End Connection Type:
C x C x Cleanout with Plug
Product Group:
Plumbing Fittings
Product Type:
Solder DWV Tees
System Use:
Commercial Plumbing, Residential Plumbing
Type of Tee:
Straight Size;with Plug;Test
Product Subgroup:
Tees
Department:
Plumbing
Country Of Origin:
United States

Nibco E159100 – Frequently Asked Questions

1) What is a DWV test tee used for on a drain line?
The Nibco 814 test tee gives you a permanent access point in a copper drain, waste and vent line. Two solder cups carry the flow, and the third opening is a threaded cleanout fitted with a plug so you can pull the plug and rod or snake that section of the system when it clogs, without cutting pipe. It is used in both commercial and residential plumbing.
2) What sizes does the Nibco 814 test tee come in?
Three pipe sizes: 1-1/2 inch (E159050), 2 inch (E159100) and 3 inch (E159150). All are straight size, meaning both run cups match the nominal size, so a 2 inch tee takes 2 inch copper DWV tube on both solder ends. Pick the size by the DWV line it is going into, most commonly 1-1/2 or 2 inch for branch waste and 3 inch for a stack.
3) Are the ends on this Nibco test tee solder or threaded?
Both run ends are solder cups (C x C), so they are sweated onto copper DWV tube with solder. The cleanout branch is threaded and ships with a plug installed. So the only threaded joint you deal with is the removable plug, not the pipe connections.
4) Can I use this on PVC or cast iron DWV pipe?
No. The run ends are solder cups sized for copper DWV tube, so they only take copper. For a cleanout on PVC or cast iron you need a fitting made for that material, or a transition coupling ahead of the copper section.
5) Is the plug included with the Nibco 814 test tee, or do I order it separately?
The plug comes with the fitting. The 814 is supplied as a cleanout with plug, so nothing extra is needed to close off the access opening on install.
6) What material is the Nibco 814 test tee made of, and will it hold up in waste water?
It is a cast bronze fitting, ASTM B584 alloy C84400, and is dezincification resistant, which matters where waste water and varying water chemistry would attack a high zinc alloy. Material and workmanship follow ASME B16.23 for cast copper alloy DWV fittings.
7) Is a copper test tee acceptable on a commercial job spec'd to ASME B16.23?
Yes. The 814 test tee is built to ASME B16.23 for material and workmanship, is cast from ASTM B584 C84400 bronze, and is manufactured in an ISO 9001 certified facility. It is listed for both commercial and residential plumbing use.
8) Should I put in a test tee or a regular sanitary tee on a copper drain branch?
Use a plain DWV sanitary tee where the third opening is taking a branch drain or a vent. Use the 814 test tee where you want access instead of a connection: the third leg is a threaded cleanout with a plug, not a tube socket, so it is for rodding and testing the line, not for joining another pipe to it.
9) Does a copper DWV test tee count toward sustainable project credits?
Copper is reusable and fully recyclable at end of life, which is why it gets used on sustainable projects, and Nibco calls that out for its copper fittings. The 814 is cast bronze per ASTM B584 C84400 and made in an ISO 9001 certified facility.
How fast can I get the Nibco E159100 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 E159100 come with a warranty?
Absolutely. The Nibco E159100 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 E159100?
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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