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

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.