KOHLER K-4421 Cimarron 1.28 gpf toilet tank

  • $142.08
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This WaterSense(R)-labeled tank combines water efficiency with the versatile style of the Cimarron collection. A 1.28-gallon flush provides significant water savings of up to 16,500 gallons per year, compared to a 3.5-gallon toilet, without sacrificing performance. This tank features innovative AquaPiston technology, a patented flush engine that delivers a fast, powerful, and virtually plug-free flush. Pair this tank with the K-4309 bowl for a complete toilet.


  • 1.28 gpf (4.8 lpf).
  • Left-hand Polished Chrome trip lever.
  • Combines with the K-4309 bowl to create a complete K-3609 Cimarron toilet.
  • Coordinates with other products in the Cimarron collection.
  • Supply line sold separately.

Additional Resources:
Specification Sheet

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