The KOHLER Corbelle toilet tank combines a clean profile with a water-efficient 1.28 gpf flush and AquaPiston canister technology. At its heart, AquaPiston technology, a canister flush engine, harnesses gravity and a natural cascade of water to clear the bowl quickly and completely on the first try, resisting clogs so you can flush with confidence. The right-hand Polished Chrome trip lever completes the design. This tank pairs with the Corbelle toilet bowl to complete a sleek two-piece toilet that elevates your space. Bring a powerful, water-wise flush to your bathroom with the KOHLER Corbelle toilet tank. Color: White. Material: Vitreous China.