


Wellworth® Toilet tank, dual-flush
- Product type
- Dual-Flush Toilet Tank
- Combines with the K-4197 or K-4198 bowl to create a complete K-3987 or K-3988 Wellworth toilet
- Combines with the K-4199 bowl to create a complete K-3989 Highline toilet
- Coordinates with other products in the Wellworth collection
In stock5 available
Tank or in-wall system only, unless stated otherwise.
Check parts & fitProduct information
Overview & features
The KOHLER Wellworth dual-flush toilet tank offers 1.1 or 1.6 gpf through a left-hand nested trip lever. Its side-mounted lever leaves the tank lid clear and coordinates with the other products in the Wellworth collection. Because the trip lever sits on the side of the tank like a traditional toilet, the top stays flat and open for the small items you want within easy reach. When you pair this tank with the compatible bowl, you complete a Wellworth or Highline toilet that brings dependable performance to your bathroom. Coordinating beautifully with other pieces in the Wellworth collection, this tank helps you build a space that feels considered, cohesive, and ready for everyday life.
Features
- Left-hand nested trip lever offers a choice of 1.1 or 1.6 gallons per flush (gpf)
- Combines with the K-4197 or K-4198 bowl to create a complete K-3987 or K-3988 Wellworth toilet
- Combines with the K-4199 bowl to create a complete K-3989 Highline toilet
- Coordinates with other products in the Wellworth collection
Specifications
| Material | Vitreous China |
|---|---|
| Product type | Toilet Tanks |
| Style | Transitional |
| Application | Residential |
| Length | 8.5 in (216 mm) |
| Width | 18 in (457 mm) |
| Height | 14.75 in (375 mm) |
| ASME / CSA standard | ASME A112.19.2/CSA B45.1 |
| Warranty | KOHLER® Toilets and Seats Limited Warranty |
Available variants
| SKU | Finish |
|---|---|
| 4458-0 | White |
| 4458-7 | Black Black |
Documents
Dimensions & specifications
- Product type
- Dual-Flush Toilet Tank
- Material
- Vitreous China
- Length
- 8.5 in.
- Width
- 18.0 in.
- Height
- 14.75 in.
- Certifications
- ASME
What’s included
Tank or in-wall system only, unless stated otherwise.
See the product description and manufacturer documents for package contents. Need to confirm a specific item? Contact us before ordering.
Compatibility & additional parts
You may also need
Some installations need additional parts such as a valve, rough-in, drain, seat or mounting hardware. Check the manufacturer documents or contact us and we’ll help confirm what your installation requires.
Compatible bowl, seat, carrier, actuator plate or trim.
Documents & downloads
Specifications
Service parts
Product & installation videos
Contact us for documents for this model.
Delivery & returns
Availability and lead time
In stock
Availability can change as orders are placed.
Check availability & lead timeShipping policy
Before installation
Confirm the product, finish and required parts are right for your project, then review return eligibility.
Eligible items must remain unused, uninstalled, undamaged and in original packaging. Some special orders and installed goods are non-returnable, subject to statutory rights.
Parts, repair & warranty
- Replacement parts
Availability not confirmed
Replacement parts may be available for this model. Contact us with the model number and the part you need.
- Service & repair
Availability not confirmed
Faucetera+ does not provide installation or repair labour. We can help you find manufacturer support information.
- Care & repair information
Availability not confirmed
Manufacturer care, maintenance and repair information is provided when available. Contact us if you need help finding it.
An unconfirmed status means you should request current information before purchase. This does not limit any legal warranty or consumer right.
For the warranty terms for this model, review the manufacturer documents or contact us.
Nothing here limits any rights or legal warranties that apply to your purchase.
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