Item # bci1283026

The Kohler K-4421-UR-0 has been discontinued

** See similar or replacement items below **

Kohler Cimarron Toilet Tank Only

Model: K-4421-UR-0

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

Product Overview

Cimarron(R) 1.28 gpf Class Six(R) toilet tank with Insuliner(R) tank liner and right-hand trip lever

With its striking geometric lines, the Cimarron toilet tank is a versatile addition to any décor. Available in a palette of KOHLER colors, this tank can be combined with your choice of Cimarron toilet bowls to create a Cimarron Comfort Height toilet.


  • Please see K-3609-UR Cimarron Comfort Height two-piece toilet for full details
  • 12" rough-in
  • Class Six canister flush valve provides smooth flushing actuation, with consistent water usage, flush after flush
  • Exclusive DryLock(tm) fast installation system prevents potential leak points during installation and throughout the life of the product
  • Combines with the K-4309 Elongated Toilet bowl with Class Six flushing technology to create the K-3609-UR Cimarron Comfort Height EB Toilet 1.28-gallon per flush Combination with Class Six flushing Technology
  • Meets strict flushing performance guidelines established by the EPA (Environmental Protection Agency) WaterSense program

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

*Denotes a finish or option that has been discontinued.

Manufacturer Resources

Dimensions and Measurements

8 in.
Flush Valve Size
3.25 in.
Gallons Per Flush
14.25 in.
17.63 in.

Characteristics and Features

Tank Only
Design Features
Insulated Tank
Flush Type
Gravity Flush
Vitreous China
Trip Lever Placement
Water Efficient

Manufacturer Technology

Flush Technology
Class Six

Warranty and Product Information

CA Drought Compliant
Country Of Origin
Made in America
WaterSense Certified