does this toilet have the K-4492 tank ?
The Kohler K-3509 uses the K-4491 tank.

Memoirs® Comfort Height™ round-front toilet with Classic design
With a design inspired by elegant architecture, this Memoirs toilet with Classic design merges performance and traditional style. Its round-front seat conveniently fits smaller bath and powder rooms, and is positioned at a comfortable height for ease of use. High-powered flushing ensures cleanliness.
Features:
This product is listed under the following manufacturer number(s):
*Denotes a finish or option that has been discontinued
The Kohler K-3509 uses the K-4491 tank.
The Kohler K-3509 is discontinues in ice gray. The K-3817 is still available.
They are both 16.5" tall to the bowl. They are both considered comfort height. I apologize for the confusion and the typo. It is being corrected.
The two toilets have a slightly different design to the tanks. The Kohler K-3509 is the classic design and the K-3511 is the stately design. They are functionally the same.
| Rough In | 12 |
|---|---|
| Concealed Trapway | No |
| Made in America | Yes |
| Flush Type | Gravity Flush |
| Height | 31.5 |
| Trip Lever Placement | Left |
| WaterSense Certified | No |
| Insulated Tank | No |
| Trapway | 2.13 |
| Bowl Height | 16.5 |
| ADA | Yes |
| Width | 17.81 |
| Lever Placement | Left |
| Flush Technology | Class Five |
| Category | Toilets |
| Material | Vitreous China |
| Configuration | Two Piece |
| Installation Type | Floor Mounted |
| Country Of Origin | USA |
| Gallons Per Flush | 1.60 |
| Comfort Height | Yes |
| Depth | 28.375 |
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