Niagara's Toilet Tank Bank™ is an easy-to-use, quick-to-install water saving device. Simply fill will with water and clip onto the inside of the tank wall. With a patented air lock and fill valve, the Tank Bank™ eliminates water evaporation and odors and will never require maintenance.
- The Tank Bank™ is the easiest device to use to save water - fill to top, snap to close and hang in toilet tank
- Every flush saves water with maintenance-free toilet tank displacement bag; up to .8 gallons per flush!
- Constructed of non-corrosive materials that resist microbes & fungal growth
- Anti-evaporation snap/airlock means the bag never needs refilling and prevents odors
- Will not interfere with flush mechanics