Sioux Chief 868-15U Underdeck ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$61.36

Sioux Chief 868-15U Underdeck Clamp Kit for 15" Roof Drain

(No reviews yet) Write a Review

Model: 868-15U

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

$61.36
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

Sioux Chief 868-15U Underdeck Clamp Kit for 15" Roof Drain

The Sioux Chief 868-15U Underdeck Clamp Kit is designed to secure a 15" roof drain assembly from beneath the deck during rough-in installation, providing a stable, code-ready connection point for roofing and plumbing contractors working on commercial and industrial low-slope roof systems. This underdeck clamp kit is sized specifically to mate with 15" roof drain bodies, giving installers a dedicated accessory for anchoring the drain securely to the structural deck before roofing membrane and insulation are installed over it. As with other Sioux Chief rough-in accessories, this kit ships packaged for field use and is intended to be installed by a licensed plumber or roofing contractor as part of a complete roof drainage assembly.

Key Features

  • Sized for 15" Roof Drains: Purpose-built underdeck clamp kit matched to 15" roof drain bodies for a secure structural connection.
  • Underdeck Mounting: Clamps from below the deck to hold the roof drain firmly in place prior to membrane and roofing work.
  • Kit Packaging: Supplied as a complete kit, packaged 1 EA, so installers have the components needed for a single drain installation on hand.
  • Rough-In Accessory: Intended for behind-the-deck, below-grade installation as part of a larger roof drain assembly rather than a standalone decorative part.
  • Compatible System Component: Designed to work alongside Sioux Chief 15" roof drain fittings for a complete rough-in drainage solution.

Technical Specifications

  • Trade Size: Fits 15" roof drain
  • Country of Origin: China
  • Packaging: 1 EA

Typical Applications

  • Commercial and Industrial Roof Drain Rough-In
  • Underdeck Anchoring of 15" Roof Drain Assemblies
  • New Construction Roof Drainage Systems
  • Roof Drain Retrofit and Replacement Projects

Why Sioux Chief?

Sioux Chief supplies rough-in plumbing contractors with purpose-built accessories like this underdeck clamp kit, sized to match specific drain components so installers aren't left improvising a fastening solution on the job site. Choosing a kit matched to the 15" roof drain it's designed for helps keep the drainage assembly properly anchored beneath the deck before roofing work proceeds.

Manufacturer Resources

Product Specs

Product Type:
Clamp Kit
Country of Origin:
China
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Hangers and Supports
Product Size:
15"

Sioux Chief 868-15U – Frequently Asked Questions

1) Is the Sioux Chief 868-15U a complete roof drain, or just the clamp?
Just the underdeck clamping hardware. The 868-15U is an accessory kit, not a drain, so the 15 inch drain body, strainer dome, and outlet connection are ordered separately. It is meant to work alongside Sioux Chief 15 inch roof drain fittings to complete the rough-in assembly.
2) What is an underdeck clamp kit for, and do I need one with a roof drain?
It anchors the roof drain body to the structural deck from underneath, so the drain is held firm before insulation and roofing membrane go over it. Without it the installer is improvising a fastening method on the deck. The Sioux Chief 868-15U does that job for a 15 inch drain, and it is a rough-in accessory rather than a finish part, so it gets installed before roofing work proceeds.
3) How many drains does one Sioux Chief 868-15U kit cover?
One. The 868-15U is packaged 1 EA and supplied as a complete kit with the components for a single 15 inch drain installation, so order one kit per drain on the roof.
4) Is the Sioux Chief 868-15U suitable for replacing a drain on an existing roof, or only new construction?
Both. The kit is used for new construction roof drainage rough-in and for roof drain retrofit and replacement work, as long as the drain body is a 15 inch Sioux Chief roof drain and you have access to the underside of the deck to clamp it.
5) What is the exact part number and manufacturer for the 15-inch underdeck roof drain clamp kit?
Sioux Chief, part number 868-15U. That is the full manufacturer part number to spec or order against for a 15 inch underdeck clamp kit. Country of origin is China.
How fast can I get the Sioux Chief 868-15U 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 868-15U come with a warranty?
Absolutely. The Sioux Chief 868-15U 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 868-15U?
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 868-15U from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.