Sioux Chief TANKBOWL Recessed ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.70
Sioux Chief TANKBOWL Recessed Tank-to-Bowl Gasket for Two-Piece Toilets

Sioux Chief TANKBOWL Recessed Tank-to-Bowl Gasket for Two-Piece Toilets

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Model: TANK/BOWL

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

$1.70
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Sioux Chief TANKBOWL Recessed Tank-to-Bowl Gasket for Two-Piece Toilets

The Sioux Chief TANKBOWL Recessed Tank-to-Bowl Gasket is a rough-in plumbing replacement part built to seal the connection point between the tank and the bowl on a two-piece toilet. Its recessed profile is shaped to seat against the mounting surface where the tank bolts down to the bowl, closing the gap that water passes through on its way from the tank into the bowl during every flush. Plumbers and contractors reach for a gasket like this any time a two-piece toilet is being reassembled, repaired for a persistent leak or seep at the tank-to-bowl joint, or rebuilt during a rough-in service call. Because it is a Sioux Chief part, it is sized and shaped as a direct functional match for the tank-to-bowl seal it is intended to replace, and it is a wear item worth keeping in stock on a service truck.

Key Features

  • Recessed Design: The gasket's recessed profile is built to seat properly against the tank-to-bowl mounting surface, helping it stay centered and seated during installation.
  • Tank-to-Bowl Application: Purpose-made for the connection between a toilet tank and bowl on two-piece toilet assemblies, where it forms the water seal between the two components.
  • Rough-In Plumbing Replacement Part: Sized as a functional replacement for worn or deteriorated tank-to-bowl gaskets, making it a straightforward swap during a toilet rebuild or repair.
  • Common Service Item: A frequently replaced wear component on two-piece toilets, useful to keep on hand for repair calls where the tank-to-bowl seal has started to leak.
  • Sioux Chief Fit: Manufactured by Sioux Chief for use where a Sioux Chief tank-to-bowl gasket is specified or where a matching replacement is required.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Two-Piece Toilet Tank-to-Bowl Assembly
  • Toilet Repair and Leak Correction at the Tank-to-Bowl Joint
  • Toilet Rebuild Kits and Replacement Parts Service
  • Residential and Commercial Restroom Rough-In Plumbing
  • Renovation and Service Calls Involving Two-Piece Toilets

Why Sioux Chief?

Sioux Chief is a long-established manufacturer of rough-in and behind-the-fixture plumbing parts trusted by plumbers and contractors for replacement components that fit and function as intended. Choosing a Sioux Chief tank-to-bowl gasket for a two-piece toilet repair or rebuild gives a plumbing professional a straightforward, purpose-built part for closing the tank-to-bowl connection rather than relying on a generic substitute. Keeping a supply of Sioux Chief gaskets on hand helps a service truck or supply house cover common toilet repair calls without a special order or a delay waiting on parts.

Manufacturer Resources

Sioux Chief Product Catalog

Product Specs

Product Type:
Tank-to-Bowl Gasket
Configuration:
Recessed
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Parts & Accessories

Sioux Chief TANK/BOWL – Frequently Asked Questions

1) What does the Sioux Chief TANKBOWL gasket actually seal on a toilet?
It seals the joint where a two-piece toilet's tank bolts down onto the bowl, closing the passage water travels through from tank to bowl on each flush. It is the part to replace when you see a seep or drip at the base of the tank rather than at the floor flange or the supply connection.
2) Will this gasket work on a one-piece toilet?
No. There is no tank-to-bowl joint on a one-piece toilet, so this gasket has nothing to seal there. It is made for two-piece assemblies where the tank is a separate component bolted to the bowl.
3) Is the tank-to-bowl gasket the same thing as the wax ring under the toilet?
No, and they are not interchangeable. This gasket goes between tank and bowl, above the floor. The wax ring or waxless seal goes between the bowl's horn and the closet flange at the floor. A leak at the floor needs the flange seal, not this part.
4) What is the difference between a recessed tank-to-bowl gasket and a flat one?
Recessed is the configuration of this Sioux Chief gasket. The recessed profile seats down against the tank-to-bowl mounting surface and helps the gasket stay centered while you set the tank, instead of sitting flat on top and sliding as the tank goes down. If the toilet you are rebuilding originally used a flat washer-style seal, match what came out.
5) Do the tank bolts and washers come with the Sioux Chief TANKBOWL gasket?
The Sioux Chief TANKBOWL is sold as the tank-to-bowl gasket itself, model TANK/BOWL. If the brass tank bolts, rubber washers or nuts are corroded on the toilet you are rebuilding, order those separately so you are not reusing hardware that will weep at the bolt holes.
6) My toilet is leaking between the tank and bowl, but only when I flush. Is the gasket the problem?
That symptom points at the tank-to-bowl seal. Water only passes through that joint under volume during the flush, so a deteriorated gasket or a loose tank will weep then and stay dry at rest. Replacing the gasket, and snugging the tank bolts evenly, is the standard correction. If the water instead runs down from the supply nut or the fill valve shank, that is a different seal.
7) We maintain restrooms in a commercial building with a lot of two-piece toilets. Is this a part worth stocking?
Yes. The tank-to-bowl seal is a wear item that deteriorates and starts seeping, and it is one of the more common two-piece toilet repair calls. Keeping Sioux Chief TANKBOWL gaskets on the truck or on the shelf covers those calls without a special order. It applies to both residential and commercial restroom work.
8) Is there a Sioux Chief spec sheet for the TANKBOWL gasket?
Full dimensional and material detail for the TANKBOWL gasket is in the Sioux Chief product catalog, available as a PDF under the product documentation. Worth a look if you need to confirm the gasket profile against the tank opening on an older or non-standard two-piece toilet.
How fast can I get the Sioux Chief TANK/BOWL 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 TANK/BOWL come with a warranty?
Absolutely. The Sioux Chief TANK/BOWL 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 TANK/BOWL?
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 TANK/BOWL from ZenSupply?
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