This Cimarron toilet tank features innovative AquaPiston technology, a patented flush engine that delivers a fast, powerful, and virtually plug-free flush. 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. Pair this tank with the K-31588 bowl for a complete Cimarron K-31621 elongated toilet.

Combines with the K-31588 bowl to create a complete K-31621 Cimarron® elongated toilet.
Left-hand Polished Chrome trip lever.
1.28 gpf (4.8 lpf).
Easy-to-flush canister design requires less force to actuate than a 3 (76 mm) flapper, and has 90% less exposed seal material which resists conditions that cause wear, tear, shrinkage and swelling
AquaPiston canister optimizes the flow out of the tank, harnessing gravity and the natural powerful reducing cascade of water to increase the power and effectiveness of the flush
Combines with the K-31588 bowl to create a complete K-31621 Cimarron elongated toilet
Easy-to-flush canister design requires less force to actuate than a 3" (76 mm) flapper, and has 90% less exposed seal material which resists conditions that cause wear, tear, shrinkage and swelling
AquaPiston® canister optimizes the flow out of the tank, harnessing gravity and the natural powerful reducing cascade of water to increase the power and effectiveness of the flush

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2-piece Toilets - Toilet Tanks for Kohler 31588-0

Cimarron 1.28 GPF Toilet Tank - White 31615-RA-0 Kohler

Cimarron 1.28 GPF Toilet Tank - White 31615-0 Kohler