Item # bci1795205

The Kohler K-4641-0 has been discontinued

** See similar or replacement items below **

Kohler Memoirs Classic 1.6 GPF Toilet Tank Only with AquaPiston Technology

Model: K-4641-0

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Product Overview

Product Features:

  • Tank only configuration - allows the opportunity to match pieces with a selected bowl
  • Covered under Kohler's 1 year limited warranty
  • The Memoirs Classic Collection is inspired by elegant architecture and traditional crown molding
  • Constructed of durable, easy to clean vitreous china
  • Features a powerful gravity flush with AquaPiston technology

Product Technologies / Benefits:

  • AquaPiston: AquaPiston single flush canister technology uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong, efficient siphon during flushing. The canister flush valve's 3:2 ratio optimizes flush performance and resists warping and deterioration, while its durable design features 90% less exposed seal material than a standard 3-inch flapper flush valve, guaranteeing leak-free performance. The light-touch canister requires lower activation force than a flapper, and once activated, allows water to flow into the bowl from all sides (360 degrees), increasing each flush's power and effectiveness.

Product Specifications:

  • Overall Height: 14-15/16" (measured from bottom to top of tank)
  • Overall Depth: 8-3/4" (measured from back to front of tank)
  • Overall Width: 17-13/16" (measured from rightmost to leftmost edge of tank)
  • Flow Rate: 1.6 GPF (gallons per flush)


  • K-4641: This model
  • K-4433: 1.28 GPF version of this model
  • K-3818: This model with bowl (complete toilet fixture)
  • k-4642: Memoirs Stately version of this model


This product is listed under the following manufacturer number(s):

*Denotes a finish or option that has been discontinued.

Manufacturer Resources

Dimensions and Measurements

Trap Diameter

Included Components

Angle Supply Included

Characteristics and Features

Tank Only
Flush Type
Gravity Flush
Trip Lever Finish

Warranty and Product Information

CA Drought Compliant
Country Of Origin
TX Drought Compliant