Sioux Chief 335 Series Adjusta...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$88.00
Sioux Chief 335 Series Adjustable Flashing Drain, ABS

Sioux Chief 335 Series Adjustable Flashing Drain, ABS

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Model: 863-335SR

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

$88.00
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Sioux Chief 335 Series Adjustable Flashing Drain, ABS

The Sioux Chief 335 Series is an adjustable flashing drain built around a 3" ABS base adapter, designed for rough-in installations where a roof or deck drain assembly needs to accommodate variable membrane and flashing heights. The series is available in two strainer configurations — model 863-335SQ with a square strainer and model 863-335SR with a 5" round stainless steel strainer — so installers can select the strainer profile that fits the finished surface while the underlying drain assembly stays the same. Every option in the series shares an ABS/PVC base adapter, an ABS clamping collar, and an ABS head adapter, finished with an acme-threaded adjustment collar that lets installers set the correct height on site without relying on pipe threads that are prone to cross-threading. This makes the 335 Series a practical choice for plumbers working behind finished surfaces on new construction or retrofit flashing drain work, whether the job calls for a square or round strainer at the finished opening.

Key Features

  • Trade Size: 3" ABS base adapter for standard rough-in drain connections, shared across both strainer configurations.
  • Durable Construction: ABS/PVC base adapter paired with an ABS clamping collar and head adapter for a secure, field-adjustable assembly.
  • Acme Thread Adjustment: Acme threads are stronger than standard pipe threads and resist cross-threading during height adjustment, simplifying installation in the field.
  • Strainer Options: Choose the 863-335SQ with a square strainer or the 863-335SR with a 5" round nickel bronze and stainless steel strainer suited for pedestrian traffic areas.
  • Optional Ductile Iron Head/Collar: A ductile iron head/collar is available for the assembly where added strength is required.
  • Finished Walkable Surface: Both strainer profiles integrate with the adjustable collar for a finished, walkable surface at the drain opening.

Technical Specifications

  • Country of Origin: United States
  • Cubic Volume: 1.5738
  • Packaging: 6 EA
  • Model Options: 863-335SQ (square strainer), 863-335SR (round strainer)

Typical Applications

  • Adjustable Roof and Deck Flashing Drain Installations
  • Rough-In Drain Assemblies Behind Membranes and Flashing
  • Pedestrian Traffic Area Drains Requiring a Round or Square Strainer
  • New Construction and Retrofit Drainage Rough-In
  • ABS/PVC Drain Base Connections

Why Sioux Chief?

Sioux Chief builds the 335 Series around acme-thread adjustment, ABS/PVC base construction, and a choice of square or round strainer finishes, giving plumbers a field-adjustable assembly that resists cross-threading during installation regardless of which strainer profile the job requires. The option of a ductile iron head/collar adds flexibility for jobs that call for additional strength at the drain head. Manufactured in the United States, this series is built for reliable, code-focused rough-in drainage work in pedestrian traffic areas.

Manufacturer Resources

Product Specs

Product Type:
Flashing Drain
Product Finish:
Stainless Steel
Configuration:
Adjustable
Country of Origin:
United States
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Drains and Cleanouts
Product Material:
ABS
Product Size:
3"

Sioux Chief 863-335SR – Frequently Asked Questions

1) What size pipe does the Sioux Chief 335 Series flashing drain connect to?
The 335 Series uses a 3 inch ABS base adapter, so it ties into standard 3 inch ABS/PVC drain piping at the rough-in. Both strainer configurations share the same base, so the pipe connection does not change whether you order the square or the round strainer version.
2) Square strainer or 5 inch round strainer - which 335 Series model should I order?
Two models: 863-335SQ comes with a square strainer, and 863-335SR comes with a 5 inch round nickel bronze and stainless steel strainer suited to pedestrian traffic areas. The drain assembly underneath is identical, so pick the profile that matches the finished surface - square typically lines up with tile or paver joints, round where the opening is cored or poured.
3) How does the 335 Series drain adjust for different membrane and flashing thicknesses?
Height is set in the field with an acme-threaded adjustment collar between the ABS clamping collar and the ABS head adapter. Acme threads are stronger than standard pipe threads and resist cross-threading, so you can run the head up or down to meet the finished surface over varying membrane and flashing build-ups without fighting the thread.
4) Is the Sioux Chief 335 drain body metal or plastic?
Plastic for the body: the base adapter is ABS/PVC, with an ABS clamping collar and ABS head adapter. The metal is at the surface - the 863-335SR carries a nickel bronze and stainless steel round strainer. If the job needs more strength at the head, a ductile iron head/collar is available for the assembly.
5) Can the 335 Series flashing drain take foot traffic once it is finished out?
Yes. Both strainer profiles seat into the adjustable collar to give a finished, walkable surface at the opening, and the 5 inch round nickel bronze and stainless steel strainer on the 863-335SR is called out for pedestrian traffic areas. For heavier duty at the head, the ductile iron head/collar option is the one to specify.
6) Will the 335 Series work on a retrofit, or is it new-construction only?
Both. The field-adjustable acme collar is what makes retrofit work practical - you set the head height to whatever the existing membrane and flashing build-up turns out to be instead of needing it known in advance. Typical uses run from new construction rough-in to retrofit roof and deck flashing drain installations.
7) How are Sioux Chief 863-335SQ and 863-335SR flashing drains packaged?
They ship 6 each per carton. Worth knowing if you are standardizing a deck or roof with multiple drains - ordering by the carton keeps the same strainer profile across every opening on the building. Both models are made in the United States.
How fast can I get the Sioux Chief 863-335SR 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 863-335SR come with a warranty?
Absolutely. The Sioux Chief 863-335SR 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 863-335SR?
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 863-335SR from ZenSupply?
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