Sioux Chief 860-3P2 Fat Max PV...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$73.55
Sioux Chief 860-3P2 Fat Max PVC Drain, 3 1/2"

Sioux Chief 860-3P2 Fat Max PVC Drain, 3 1/2"

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Model: 860-3P2

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

$73.55
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Sioux Chief 860-3P2 Fat Max PVC Drain, 3 1/2"

The Sioux Chief 860-3P2 Fat Max PVC Drain is a 3 1/2" rough-in drain fitting engineered for behind-the-wall and under-the-floor drain-waste connections. Built from PVC, it is designed to tie into PVC drain-waste-vent (DWV) piping used throughout residential and commercial plumbing systems. As part of Sioux Chief's Fat Max product line, this drain fitting is sized to support professional rough-in installation before finish work and fixtures are set. Plumbers and contractors specify rough-in drain components like the 860-3P2 to keep drain-line layouts consistent from the rough-in stage through final trim-out, well before any finished flooring or wall surface goes in.

Key Features

  • Trade Size: 3 1/2" nominal connection sized for rough-in drain-line installations.
  • Durable PVC Construction: PVC material provides a lightweight, corrosion-resistant option for drain-waste-vent (DWV) applications, an alternative to metal drain components that can corrode over time.
  • Fat Max Series: part of Sioux Chief's Fat Max line of PVC drain fittings, stocked alongside other Sioux Chief rough-in drain products.
  • Rough-In Application: installed behind the wall or under the floor as part of the drain line, ahead of finish plumbing and fixture set.
  • PVC Compatibility: sized to connect with PVC drain-waste-vent pipe and fittings for a consistent drain-line material system.
  • Jobsite-Ready: PVC construction keeps the fitting lightweight and easy to handle, cut, and solvent-weld into place during rough-in.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Residential and Commercial Rough-In Plumbing
  • PVC Drain-Waste-Vent (DWV) Piping Systems
  • New Construction Drain-Line Installations
  • Renovation and Remodel Plumbing Projects
  • Behind-the-Wall and Under-Floor Drain Connections
  • PVC Piping Systems Requiring a 3 1/2" Drain Connection

Why Sioux Chief?

Sioux Chief is a long-established manufacturer of rough-in plumbing products relied on by professional plumbers and contractors on residential and commercial jobs. The 860-3P2 Fat Max PVC drain reflects that focus on PVC construction built specifically for concealed, behind-the-wall installation rather than finished, visible fixtures. Stocking the 860-3P2 alongside other Sioux Chief drains, closet flanges, and rough-in fittings helps keep PVC drain-waste-vent installations on a single, consistent product line from rough-in through trim-out, simplifying ordering for plumbing contractors and supply houses alike.

Manufacturer Resources

Sioux Chief Product Catalog

Product Specs

Product Type:
Drain
Series:
Fat Max
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Drains and Cleanouts
Product Material:
PVC
Product Size:
3 1/2"

Sioux Chief 860-3P2 – Frequently Asked Questions

1) What size pipe does the Sioux Chief 860-3P2 Fat Max drain connect to?
The 860-3P2 is a 3 1/2 inch drain fitting, so it ties into a 3 1/2 inch PVC drain-waste-vent connection. If your rough-in is run in 2 inch or 3 inch DWV, this is not the right body size for it.
2) Is the Sioux Chief 860-3P2 drain PVC or metal?
PVC. That means it solvent-welds to PVC DWV pipe and fittings rather than being threaded or soldered, and it will not corrode the way a cast or brass drain body can. If the rest of your drain line is ABS or cast iron, you'd need an appropriate transition rather than joining it directly.
3) Where in the job does a 3 1/2 inch Fat Max PVC drain get installed?
It goes in at the rough-in stage, behind the wall or under the floor, as part of the drain line before any finished flooring, wall surface, or fixture is set. It is a concealed drain body, not a finish-visible fixture drain.
4) What is the exact part number to order for the Sioux Chief Fat Max 3 1/2 inch PVC drain?
Order Sioux Chief model 860-3P2. That single model number covers the 3 1/2 inch Fat Max PVC drain; there are no finish or size options to specify with it.
5) Will the 860-3P2 keep my drain line on one material system?
Yes, if that system is PVC. Because the body is PVC and sized for PVC DWV pipe, it keeps the drain line on a single material from rough-in through trim-out, which is why contractors stock it alongside other Sioux Chief PVC drains and closet flanges.
How fast can I get the Sioux Chief 860-3P2 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 Sioux Chief 860-3P2 come with a warranty?
Absolutely. The Sioux Chief 860-3P2 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 Sioux Chief 860-3P2?
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 Sioux Chief 860-3P2 from ZenSupply?
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