The Tank Bank is the easiest device to use to save water – fill to top, snap to close and hang in toilet tank .
Worry-free water savings for the lifetime of the toilet. Constructed of non-corrosive materials that resist microbes and fungal growth.
* Easy-to-fill
* Patented air lock and fill valve – no water evaporation which means the bag never needs refilling
* Every flush saves water - up to 0.8 gallons per flush!
* Maintenance-free
