With this bag, save your toilet water during each use: a gesture for the environment and for your budget! This eco toilet bag is universal and fits on all water toilet tanks. Very simple to set up, its installation will only take you a few minutes but its effectiveness will be felt right from the start! Simply fill it with water and hang it with the built-in hook inside the toilet tank. It saves up to 2 liters of water each time you flush the toilet. This solution allows a saving of 20 to 30% in water savings.