The KOHLER Highline toilet tank features innovative Revolution 360® technology, an advanced flushing system that uses a powerful swirling motion to thoroughly rinse the bowl. With an Insuliner® tank liner to minimize condensation, this water-efficient toilet tank also utilizes 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.

Toilet tank, 1.28 gpf

• 1.28 gpf (4.8 lpf)
• Left-hand Polished Chrome trip lever
• Insuliner® tank liner minimizes condensation on the tank
• Combines with a K-44198, K-44197, K-44373, or K-44199 bowl
• Revolution 360® flushing technology generates a forceful swirling motion to keep the bowl clean longer
• 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
• 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