With the Bath Ball Chlorine Replacement Filter for the Bath Ball, you can easily continue to experience the benefits of a filtered chlorine-free bath! The Bath Ball Replacment Filter is more beneficial than simply filtering the chlorine out of your bathwater supply. With the Bath Ball Replacement Filter, you are less likely to experience damage to your plumbing pipes due to the backup or clogging of sediment and bacteria. The Bath Ball Chlorine Filter should be replaced every 12 months for a full year of fresh filtration and protection. The Bath Bal's Chlorine Filter is pH balanced, which means that it maintains a healthy level of hydrogen in your water supply, while carefully removing the harmful sediment and contaminants. Since the Bath Ball replacement filter is made with polycarbonate, the system does not rust or deteriorate, which can lead to further contaminants entering your water supply. Replacing the filter in your Bath Ball once per year will ensure you always enjoy the cleanest, healthiest bath water possible.