1.6 gpf (6.0 lpf);Left-hand Polished Chrome trip lever;Combines with the K-31588 or K-31589 bowl to create a complete K-31620-DRY or K-31640-DRY Cimarron toilet;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