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The repair coupling features solder cups and no stop. The fitting provides a means to connect/repair two lengths of tube. 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.
Copper Fittings Installation Instructions
- Dezincification resistant
- ASTM B75 Alloy C12200
- Material and workmanship per ASME B16.29
Copper Fittings Installation Instructions
Manufacturer Resources
NIBCO Copper Fittings Catalog
Product Specs
- All Application(s):
- DWV Drain / Waste / Vent
- All Basic Material:
- Copper
- Classification:
- Solder DWV Couplings
- End Connection:
- Solder
- Metal End Connection Type:
- C x C
- Product Group:
- Fitting
- Product Type:
- Solder DWV Couplings
- System Use:
- Commercial Plumbing, Residential Plumbing
- Type of Coupling:
- Straight Size;Repair (No Stop)
- Product Subgroup:
- Coupling
- Department:
- Plumbing
- Country Of Origin:
- United States
Nibco H010850 – Frequently Asked Questions
1) What is a no-stop repair coupling and when do I use one instead of a regular DWV coupling?
The Nibco 901-RP is a repair coupling with no internal stop, so it slides completely onto one length of copper DWV tube. That lets you join two fixed pipe ends that can't be pulled apart, which is the usual situation on a repair cut-in. A standard coupling has a center stop that seats each tube end, so it only works when at least one piece of pipe can be sprung or moved into the fitting. If you're cutting out a bad section of drain line and dropping in a new piece, the no-stop version is what you want.
2) Can I use the 901-RP copper repair coupling on a pressurized water line?
No. This is a DWV fitting, built for drain, waste and vent service only. DWV copper fittings and DWV tube are thinner walled than pressure copper and are not rated for supply piping. For a domestic water repair you need a pressure-rated wrot copper repair coupling in Type L or M tube sizes.
3) Will the 901-RP slide all the way onto the pipe so I can center it over the joint?
Yes. With no internal stop, the coupling slides freely along the tube, which is exactly how a repair joint goes together: push the coupling fully onto one side, set the new section, then slide the coupling back so it straddles the cut and solder both cups. Mark your tube first so you know where the coupling needs to land before you heat it.
4) What pipe sizes does the Nibco 901-RP DWV repair coupling come in?
Four sizes: 1-1/2 inch, 2 inch, 3 inch and 4 inch. That covers the common copper DWV runs, 1-1/2 and 2 inch for fixture drains and vents, 3 and 4 inch for main stacks and building drains. Order by nominal tube size, not by outside diameter.
5) What material and standards does the Nibco 901-RP repair coupling meet?
It's wrot copper, ASTM B75 alloy C12200, with material and workmanship per ASME B16.29, the standard for wrought copper solder-joint DWV fittings. It is also dezincification resistant, which matters where water chemistry is aggressive. Nibco makes these in an ISO 9001 certified facility.
6) Is this copper repair coupling approved for commercial buildings or just residential?
Both. The 901-RP is listed for commercial and residential plumbing systems, and the sizes run up to 4 inch, which covers commercial stacks and building drains as well as single-family work. For an MRO or institutional standardization program, it's the same fitting across the range, just ordered in the size you need.
7) What part number do I order for a 2 inch Nibco copper DWV repair coupling?
The 2 inch 901-RP carries manufacturer part number H010850. The rest of the family: H010800 for 1-1/2 inch, H010900 for 3 inch, and H010950 for 4 inch. Distributors quoting this line should order against those numbers rather than the 901-RP series name alone, since the series covers all four sizes.
How fast can I get the Nibco H010850 delivered?
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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 H010850 come with a warranty?
Absolutely. The Nibco H010850 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 H010850?
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