Nibco 901-7 DWV Trap Adapter C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$34.17
Nibco 901-7 DWV Trap Adapter C x SJ - Wrot

Nibco 901-7 DWV Trap Adapter C x SJ - Wrot

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Model: H018050

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

$34.17
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The trap adapter features a solder cup and slip joint connection. The fitting provides a means for adapting a solder connection to a slip joint connection. 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 B75 Alloy C12200
  • Material and workmanship per ASME B16.29

Copper Fittings Installation Instructions

Manufacturer Resources

Product Specs

All Application(s):
DWV Drain / Waste / Vent
All Basic Material:
Copper
Classification:
Solder DWV Adapters
End Connection:
Slip Joint
Metal End Connection Type:
C x SJ
Product Group:
Fitting
Product Type:
Solder DWV Adapters
System Use:
Commercial Plumbing, Residential Plumbing
Type of Adapter:
Trap
Product Subgroup:
Adapter
Department:
Plumbing
Country Of Origin:
United States

Nibco H018050 – Frequently Asked Questions

1) What does the Nibco 901-7 trap adapter connect to on each end?
The Nibco 901-7 is a C x SJ trap adapter: one end is a solder cup that sweats onto copper DWV tube, the other is a slip joint that takes a tubular trap arm with a nut and washer. It is the transition piece between a soldered copper drain stub-out and the chrome or plastic P-trap under a fixture.
2) What sizes does the Nibco 901-7 trap adapter come in?
Three: 1-1/4 inch, 1-1/2 inch, and a 1-1/2 x 1-1/4 inch reducing version. The reducer is what you want when the copper stub-out is 1-1/2 inch but the fixture trap is 1-1/4 inch tubular, which is common on lavatories.
3) Can I use a copper trap adapter on a drain line, or is it only for supply?
It is a drain fitting. The 901-7 is built for DWV (drain, waste and vent) service and is approved for both commercial and residential plumbing. It is not a pressure supply fitting.
4) What is the Nibco 901-7 trap adapter made of, and will it hold up in a waste line?
Wrot copper, ASTM B75 alloy C12200, made to ASME B16.29 for material and workmanship. It is dezincification resistant, so it will not suffer the zinc loss that plagues some yellow brass adapters in aggressive water.
5) Do I need to order a slip joint nut and washer separately for this trap adapter?
Plan on it. The 901-7 supplies the slip joint end of the connection; the nut and washer that clamp the tubular trap arm into it are normally furnished with the trap kit or bought separately. On the solder side you will also need solder, flux and a fitting brush to make the joint.
6) Should I use a copper trap adapter or a male adapter with a threaded trap?
Use the 901-7 C x SJ when you are going straight from soldered copper DWV into a tubular trap arm; the slip joint lets you set trap height and alignment after the copper is sweated in. If the trap or tailpiece is threaded rather than tubular, a solder-to-thread adapter is the correct part instead, not a trap adapter.
7) Can I solder the 901-7 with the slip joint nut and trap already in place?
No. Sweat the copper end first with the tubular parts and any plastic or rubber washers removed, then let it cool before assembling the slip joint. Torch heat will destroy a slip joint washer and can warp a plastic nut. Nibco publishes Copper Fittings Installation Instructions covering joint prep and soldering.
8) I'm standardizing lavatory rough-ins across a building. Is this fitting suitable for commercial work?
Yes. The 901-7 is listed for both commercial and residential plumbing systems and is made in an ISO 9001 certified facility. Stocking the 1-1/2 inch and the 1-1/2 x 1-1/4 inch reducing version covers most lavatory and sink rough-ins off a 1-1/2 inch copper stub.
How fast can I get the Nibco H018050 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 H018050 come with a warranty?
Absolutely. The Nibco H018050 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 H018050?
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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