Item # bci1250928

The Kohler K-4474-0 has been discontinued

** See similar or replacement items below **

Kohler Kelston 1.6 GPF Toilet Tank Only with AquaPiston Technology

Model: K-4474-0

We still have product details and accessories, scroll down to see them!

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 Kelston Collection brings warmth and elegance to the bath
  • 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" (measured from bottom to top of tank)
  • Overall Depth: 8-15/16" (measured from back to front of tank)
  • Overall Width: 16-3/4" (measured from rightmost to leftmost edge of tank)
  • Flow Rate: 1.6 GPF (gallons per flush)


  • K-4474: This model
  • K-4469: 1.28 GPF version of this model
  • K-3754: This model with bowl (complete toilet fixture)

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

*Denotes a finish or option that has been discontinued.

Dimensions and Measurements

8.94 in.
Gallons Per Flush
14 in.
16.75 in.

Characteristics and Features

Tank Only
Flush Type
Gravity Flush
Vitreous China
Trip Lever Placement

Manufacturer Technology

Flush Technology
Class Five

Warranty and Product Information

CA Drought Compliant
Country Of Origin
Made in America
TX Drought Compliant
WaterSense Certified