Sioux Chief 861 Square Max PVC...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$62.37
Sioux Chief 861 Square Max PVC Schedule 40 Hub Fitting

Sioux Chief 861 Square Max PVC Schedule 40 Hub Fitting

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Model: 861-4PX

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

$62.37
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Sioux Chief 861 Square Max PVC Schedule 40 Hub Fitting

The Sioux Chief 861 Series Square Max is a PVC Schedule 40 hub fitting built for rough-in floor sump and drain installations, available in 2" and 4" hub connection sizes to match standard floor sump and drain rough-in work. Molded from tough, impact-resistant PVC with an integral anchor flange, it delivers a clean, finished appearance at the floor while providing a solid, secure installation into the surrounding slab or mortar bed. Across both sizes the hub is rated to handle water temperatures up to 180°F, and every inner surface is pitched so there is no standing water left in the sump area after use. An optional clamping collar is available for above-grade installations where a mechanical seal to the drain body is required.

Key Features

  • Trade Size Range: Offered in 2" and 4" hub connections sized for standard floor sump and drain rough-in work.
  • Durable Construction: Tough, impact-resistant PVC body resists cracking and damage during handling and installation.
  • Anchor Flange: Integral flange locks into the slab or mortar bed for a clean appearance and a solid, secure installation.
  • Temperature Rating: Handles water temperatures up to 180°F for typical floor drain and sump applications.
  • Self-Draining Design: All inner surfaces are pitched so no standing water collects in the sump area.
  • Clamping Collar Option: An optional clamping collar is available when the fitting is used in an above-grade installation.

Technical Specifications

  • Country of Origin: USA
  • Material: PVC, Schedule 40
  • Trade Size: 2" and 4" hub
  • Packaging: 3 EA per pack

Typical Applications

  • Below-Grade Floor Sump Rough-In
  • Commercial and Residential Floor Drain Installations
  • Above-Grade Drain Installations with Clamping Collar
  • New Construction and Renovation Plumbing Rough-In

Why Sioux Chief?

Sioux Chief builds the 861 Square Max hub from impact-resistant PVC with a pitched interior and integral anchor flange, giving plumbers a dependable, self-draining connection for floor sump work across both the 2" and 4" sizes. The 180°F temperature handling and optional clamping collar give contractors flexibility for both below-grade and above-grade installations without switching fitting lines, all backed by Schedule 40 PVC construction made in the USA.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Floor Sump/Hub Fitting
Configuration:
Square Max Hub
Country of Origin:
United States
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Pipe and Tubing
Product Material:
PVC
Product Size:
4"

Sioux Chief 861-4PX – Frequently Asked Questions

1) What sizes does the Sioux Chief 861 Square Max hub fitting come in?
Two hub sizes: 2 inch and 4 inch. The 2 inch is part number 861-2PX and the 4 inch is 861-4PX, both PVC Schedule 40. Pick the size to match the drain or sump rough-in you are tying into.
2) Can the 861 Square Max hub be used above grade, or is it only for slab pours?
Both. Below grade the integral anchor flange locks into the slab or mortar bed. For above-grade installations where you need a mechanical seal to the drain body, an optional clamping collar is available and has to be ordered separately.
3) What water temperature can the Sioux Chief 861 PVC hub fitting handle?
Rated for water up to 180 degrees F in both the 2 inch and 4 inch sizes. That covers normal floor drain and sump discharge. Continuous high-temperature process or boiler blowdown waste is beyond what a PVC hub like this is meant for.
4) Will water stand in the sump after it drains with this fitting?
No. Every inner surface of the 861 Square Max is pitched, so the sump area drains out rather than holding a puddle. That matters in kitchens, washdown areas and anywhere standing water becomes an odor or sanitation complaint.
5) Does the 861 hub fitting solvent weld to standard PVC DWV pipe?
It is a hub connection in PVC Schedule 40, so it takes PVC pipe of the matching 2 inch or 4 inch trade size into the hub. Use PVC solvent cement rated for the pipe you are joining. It will not accept ABS or cast iron pipe directly.
6) How many pieces come in a pack of the Sioux Chief 861 hub?
Packaged 3 each per pack. Worth knowing if you are buying for a single repair rather than a multi-drain rough-in.
7) What material is the 861 Square Max hub fitting made of, and where is it made?
Impact-resistant PVC, Schedule 40, made in the USA. The impact resistance is the practical part: these get kicked around a rough-in floor and dropped before the pour, and the body resists cracking through handling.
How fast can I get the Sioux Chief 861-4PX 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 861-4PX come with a warranty?
Absolutely. The Sioux Chief 861-4PX 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 861-4PX?
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 861-4PX from ZenSupply?
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