KOHLER Betello 1.28 GPF Single Flush Toilet Tank Only in BlackKOHLER Betello Single Flush Toilet Tank in Black The KOHLER Betello Single Flush Toilet Tank combines sleek design with advanced flushing technology, offering the ContinuousClean system that automatically dispenses cleaner with every flush. Its powerful AquaPiston flush system provides a fast, efficient performance while maintaining water efficiency. Key Features: ContinuousClean System: Automatically dispenses cleaning solution with every flush,