Sioux Chief 633-C18 3/4" CPVC ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$26.40
Sioux Chief 633-C18 3/4" CPVC Riser Tube with No-Lead FIP Swivel Connection, 18" Length

Sioux Chief 633-C18 3/4" CPVC Riser Tube with No-Lead FIP Swivel Connection, 18" Length

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Model: 633-C18

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

$26.40
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Sioux Chief 633-C18 3/4" CPVC Riser Tube with No-Lead FIP Swivel Connection, 18" Length

The Sioux Chief 633-C18 is an 18" CPVC riser tube built for rough-in supply hook-ups, featuring a 3/4" CPVC pipe end on one side and a 3/4" female iron pipe (FIP) swivel fitting on the other. The swivel is manufactured from no-lead, dezincification-resistant (DZR) brass, giving installers a corrosion-resistant connection point that stands up to the demands of behind-the-wall plumbing. Because the FIP swivel seals against an internal washer rather than the threads themselves, installers must never apply pipe dope or thread sealant to the swivel connection.

Key Features

  • Trade Size: 3/4" CPVC pipe end x 3/4" FIP swivel connection, with an 18" overall length sized for standard rough-in riser applications.
  • Durable Construction: CPVC tube body paired with a no-lead, DZR (dezincification-resistant) brass swivel fitting for long-term resistance to zinc corrosion.
  • FIP Swivel Connection: The female swivel end rotates freely, letting installers align the fitting without twisting the CPVC riser during hook-up.
  • Thread Sealant Caution: Do not use pipe dope on the FIP swivel threads — the swivel seals against an internal washer, and sealant can compromise the connection.
  • No-Lead Compliance: The brass swivel component is No-Lead (NL) rated, supporting potable-water rough-in requirements where lead-free fittings are specified.
  • 18" Length: The extended 18" riser gives installers extra reach when connecting CPVC supply runs to appliance or fixture shut-offs.

Certifications & Compliance

  • No-Lead (NL) Brass Swivel Fitting
  • DZR (Dezincification-Resistant) Brass Construction

Technical Specifications

  • Country of Origin: United States
  • Packaging: 25 per case
  • Material: CPVC tube with No-Lead / DZR brass FIP swivel fitting
  • Installation Note: Do not use pipe dope on FIP swivel threads

Typical Applications

  • CPVC Rough-In Supply Riser Connections
  • Washing Machine and Ice-Maker Outlet Box Hook-Ups
  • Appliance and Fixture Shut-Off Supply Runs
  • Residential and Commercial Rough-In Plumbing
  • Renovation and New Construction Rough-In Work

Why Sioux Chief?

Sioux Chief builds rough-in plumbing hardware for the demands of professional installers, and the 633-C18 riser is no exception. Pairing a CPVC tube with a no-lead, DZR brass swivel fitting gives contractors a corrosion-resistant connection that installs quickly behind the wall or under an appliance, provided the swivel threads are left free of pipe dope. It's a straightforward, code-focused component manufactured in the United States for dependable performance in everyday rough-in work.

Product Specs

Product Type:
Riser Tube
Connection Type:
FIP Swivel
Standards:
No-Lead
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Fittings and Valves
Product Material:
CPVC
Product Size:
3/4"
Country Of Origin:
United States

Sioux Chief 633-C18 – Frequently Asked Questions

1) Can I use pipe dope or thread sealant on the FIP swivel end of a Sioux Chief 633-C18 riser?
No. The FIP swivel on the 633-C18 seals against an internal washer, not on the threads, so pipe dope or thread sealant can keep the washer from seating and cause a leak. Hand-start the swivel square to the stop or shut-off, then snug it down dry. Thread sealant belongs on tapered pipe threads, not on this connection.
2) What size pipe does the Sioux Chief 633-C18 riser connect to on each end?
It is 3/4 inch on both ends: a 3/4 inch CPVC pipe end that solvent-welds into a 3/4 inch CPVC supply run, and a 3/4 inch female iron pipe (FIP) swivel on the other end that threads onto a 3/4 inch male thread such as an appliance stop or outlet box nipple. Overall length is 18 inches.
3) Will this CPVC riser work on a copper or PEX supply line?
Not directly. The tube end of the 633-C18 is CPVC and is meant to be solvent-welded into a CPVC supply run. On a copper or PEX system you would need a transition fitting ahead of it, or a riser made for that material. If the rough-in piping is CPVC, this drops straight in.
4) Is the Sioux Chief 633-C18 riser safe for potable water lines?
The brass swivel is No-Lead rated, which is what inspectors look for on potable water rough-in where lead-free fittings are specified. The brass is also dezincification-resistant (DZR), so it holds up against zinc corrosion in aggressive water.
5) Why choose an 18 inch riser instead of a shorter one for a washing machine or ice maker box?
The extra length gives you reach from the CPVC supply run up or over to the shut-off without adding couplings. On washing machine and ice maker outlet box hook-ups the stub-out and the box often do not line up with the stud bay, and 18 inches of riser lets you land the connection without a jog in the pipe. If your stub-out is close to the box, a shorter riser keeps the wall cavity cleaner.
6) Does the swivel end let me align the fitting without twisting the CPVC tube?
Yes, that is the point of it. The female end rotates freely, so you can tighten the nut onto the stop while the CPVC body stays put. That matters on a solvent-welded joint, where twisting the tube after the cement has set can stress the joint.
7) How does the Sioux Chief 633-C18 ship, and is it sold individually or by the case?
The 633-C18 is packaged 25 per case. It is made in the United States.
8) What is the part number for the 18 inch 3/4 inch CPVC Sioux Chief riser with the no-lead swivel?
Sioux Chief 633-C18. That is the 3/4 inch CPVC x 3/4 inch FIP swivel riser in the 18 inch length, with the no-lead DZR brass swivel fitting.
How fast can I get the Sioux Chief 633-C18 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 633-C18 come with a warranty?
Absolutely. The Sioux Chief 633-C18 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 633-C18?
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 633-C18 from ZenSupply?
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