Niagara Toilet Tank Bank™

The Niagara's Toilet Tank Bank™ is an easy-to-use, quick-to-install water saving device. Simply fill with water and clip onto the inside of the tank wall. With the patented air lock and fill valve, the Tank Bank™ eliminates water evaporation and odors and never requires maintenance. Just fill to the top, snap closed and hang in toilet tank. Save water with every flush with the maintenance-free toilet tank displacement bag - up to 0.8 gallons per flush! Constructed of non-corrosive materials that resist microbes & fungal growth, the Tank Bank™ anti-evaporation snap/airlock means the bag never needs refilling, prevents odors and won't interfere with flush mechanics of your toilet.