Sioux Chief 1612 Strong Arm Tu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.66
Sioux Chief 1612 Strong Arm Tube Support with One LockBlock Bracket

Sioux Chief 1612 Strong Arm Tube Support with One LockBlock Bracket

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Model: 525-1612

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

$4.66
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Sioux Chief 1612 Strong Arm Tube Support with One LockBlock Bracket

The Sioux Chief Strong Arm 1612 is a rough-in tube support bracket designed to rigidly secure CTS (copper tube size) stub-outs ranging from 1/2" to 1" before the wall or fixture finish goes on. Built around Sioux Chief's patented LockBlock technology (Patent #8,061,390), this bracket grips both the tube and the mounting bracket simultaneously when the screws are tightened, eliminating stub-out movement that can stress solder joints, crimp connections, or valve bodies behind the wall. The kit ships with one LockBlock, and the bracket design supports both interior stud-cavity mounting and face-of-stud mounting depending on the rough-in configuration.

Key Features

  • Trade Size: Rigidly secures 1/2" - 1" CTS stub-outs, covering the common range of supply and fixture stub-out tubing sizes used in residential and light commercial rough-in.
  • LockBlock Technology: Patent #8,061,390 LockBlocks grip both the tube and the bracket when screws are tightened, preventing all stub-out movement once installed.
  • Dual Mounting Configuration: L-bend brackets are designed to mount inside the stud cavity, while twisted brackets mount directly to the face of the stud, giving installers flexibility based on framing access.
  • One LockBlock Included: This model (525-1612) includes one LockBlock for single stub-out support.
  • Professional Rough-In Hardware: Purpose-built for plumbers securing CTS tubing stub-outs during behind-the-wall rough-in, before drywall or fixture installation.

Technical Specifications

  • Country of Origin: United States
  • Cubic Volume: 0.5616525
  • Packaging: 25 EA

Typical Applications

  • Securing 1/2" - 1" CTS supply stub-outs during rough-in
  • Stabilizing fixture stub-outs prior to drywall installation
  • Interior stud-cavity bracket mounting for concealed rough-in
  • Face-of-stud bracket mounting where cavity access is limited
  • New construction and remodel plumbing rough-in work

Why Sioux Chief?

Sioux Chief engineers rough-in hardware specifically for the realities of behind-the-wall plumbing, and the Strong Arm 1612's patented LockBlock design reflects that focus: a bracket that locks onto both the tube and the mounting point so stub-outs stay put through drywall, finish-out, and fixture connection. With dual L-bend and twisted bracket mounting options, it gives installers the flexibility to secure CTS stub-outs whether they're working inside the stud cavity or against the face of the framing, delivering the kind of rigid, no-movement support that trade plumbers rely on for a clean rough-in.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Tube Support
Configuration:
LockBlock
Country of Origin:
United States
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Hangers and Supports
Product Size:
1/2" - 1"

Sioux Chief 525-1612 – Frequently Asked Questions

1) What tube sizes does the Sioux Chief 1612 Strong Arm tube support hold?
The Strong Arm 1612 grips CTS (copper tube size) stub-outs from 1/2 inch through 1 inch, which covers most residential and light commercial supply and fixture stub-out tubing. If your stub-out is larger than 1 inch CTS, this bracket is not the one.
2) Can the 1612 Strong Arm mount to the face of a stud, or does it have to go inside the stud cavity?
Both. The L-bend brackets are made to mount inside the stud cavity, and the twisted brackets mount flat to the face of the stud. That lets you set the stub-out whether you have open cavity access or you are working against the framing face.
3) How many stub-outs will one Sioux Chief 525-1612 kit support?
One. Model 525-1612 ships with a single LockBlock, so it supports one stub-out. For a two-tube rough-in (hot and cold at a lavatory, for example) you need two kits or a Strong Arm model that includes two LockBlocks.
4) Why use a LockBlock bracket instead of just strapping the stub-out to the stud?
The LockBlock (Patent #8,061,390) clamps the tube and the bracket at the same time when you tighten the screws, so there is no movement left in the stub-out. That matters because a stub-out that shifts during drywall, finish-out, or fixture hookup puts stress on the solder joint, crimp connection, or valve body behind the wall, where you cannot get at it later.
5) Will the 1612 Strong Arm work on PEX stub-outs?
The 1612 is specified for CTS stub-outs, 1/2 inch to 1 inch copper tube size. CTS-dimensioned tubing in that range is what the LockBlock is sized to grip. If you are supporting tubing that is not CTS sized, size it against the bracket's 1/2 inch to 1 inch CTS range before you commit.
6) At what stage of the job do you install the 1612 Strong Arm?
During rough-in, before drywall or any fixture goes on. It is set once the stub-out is run so the tube is locked in place through board hanging, finish-out, and final fixture connection. Works the same on new construction or a remodel where the wall is open.
7) How does the Sioux Chief 1612 tube support come packaged for a bulk order?
Strong Arm 1612 brackets are packaged 25 each, which is how most plumbing contractors buy them for a multi-unit or multi-fixture rough-in. They are made in the United States.
How fast can I get the Sioux Chief 525-1612 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 525-1612 come with a warranty?
Absolutely. The Sioux Chief 525-1612 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 525-1612?
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 525-1612 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.
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