Nibco 4878 Return Bend Hub x H...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$17.31
Nibco 4878 Return Bend Hub x Hub x Cleanout with Plug - PVC DWV

Nibco 4878 Return Bend Hub x Hub x Cleanout with Plug - PVC DWV

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Model: K530350

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

$17.31
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The PVC DWV return bend features hub connections and a cleanout with plug to provide for a means of clearing potential clogs. The return bend connects the contiguous ends of two parallel pipes lying alongside or above one another and allows for a 180-degree change in the direction of flow. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. Polyvinyl chloride (PVC) is the most frequently specified of all thermoplastic materials because of its light weight, durability, and cost-effectiveness. PVC DWV is easy to install and is joined by solvent cementing or threading. PVC fittings exhibit high corrosion and chemical resistance and will not rust, scale, pit or corrode. NIBCO® plastic fittings are backed by a 5-year limited warranty. Because of its longstanding reputation for innovation and precision in design and manufacturing, NIBCO is the preferred brand in the industry.

  • Maximum service temperature 140-DegreeF
  • Do not test or use with compressed air or other gases
  • ASTM D2665 and D3311
  • NSF/ANSI Standard 14
  • NSF U.P. Certified

Plastic Fittings Installation Instructions

Manufacturer Resources

Product Specs

All Application(s):
DWV Drain / Waste / Vent
All Basic Material:
PVC - Polyvinyl Chloride
Classification:
PVC DWV Return Bends
End Connection:
Solvent Weld
Fitting Bend Angle:
180 Deg (1/2 Bend)
Pipe Schedule:
40
Plastic End Connection Type:
Hub x Hub
Product Group:
Fitting
Product Type:
PVC DWV Return Bends
System Use:
Commercial Plumbing, Residential Plumbing
Product Subgroup:
Return Bend
Department:
Plumbing
Product Color:
White
Country Of Origin:
United States

Nibco K530350 – Frequently Asked Questions

1) What sizes does the Nibco 4878 PVC DWV return bend come in?
Two pipe sizes: 1-1/2 inch (MPN K530300) and 2 inch (MPN K530350). Both are Schedule 40 PVC DWV with hub x hub ends and the cleanout tapping with plug.
2) Are the ends of the Nibco 4878 return bend threaded or solvent weld?
Both ends are hubs for solvent cementing, not threads. You prep and cement Schedule 40 PVC DWV pipe straight into the sockets. If you need a threaded connection at that point, you'd have to cement in a separate male or female adapter.
3) Does the Nibco 4878 meet code for a commercial DWV system?
It is made to ASTM D2665 and D3311, certified to NSF/ANSI Standard 14, and NSF U.P. Certified. Nibco lists it for both commercial and residential plumbing use.
4) Does the Nibco 4878 return bend come with the cleanout plug, or is that sold separately?
The plug is included. The fitting is a hub x hub return bend with a cleanout and plug, so the access point is ready to go out of the box for rodding out a clog.
5) What is a PVC DWV return bend actually used for?
It makes a 180 degree turn, a half bend, joining the ends of two parallel pipes that run alongside or above each other and reversing the direction of flow. Typical use is a drain, waste and vent line that has to double back on itself. The 4878 version adds a cleanout so the reversal point, which is where solids tend to hang up, stays accessible.
6) Will the Nibco 4878 return bend match my existing white PVC drain lines?
It is white PVC, the standard DWV color, and it cements to Schedule 40 PVC DWV pipe of the matching size. It will not bond to ABS black drain pipe; joining to ABS takes a transition coupling rather than solvent cement.
7) Will PVC DWV fittings corrode in a waste line the way metal does?
No. PVC will not rust, scale, pit or corrode, and it holds up to chemical attack, which is why it gets specified for waste lines where cast iron or steel would degrade. It also joins by solvent cement, so no torch or threading on site.
How fast can I get the Nibco K530350 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 K530350 come with a warranty?
Absolutely. The Nibco K530350 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 K530350?
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
Why buy the Nibco K530350 from ZenSupply?
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