Making it outstanding is the AquaPiston universal gasket. While capably fitting all Kohler canister flush valve toilets for simple replacement, it runs more powerfully and quietly than the 3-inch ...

KOHLER K-3609-0 Toilet might be the most powerful and effective in flushing in our test. It offers only one flush option of 1.28 GPF. In turn, the Single-flush gravity construction and the AquaPiston ...