CuZn Bath Ball REPLACEMENT FILTER ONLY (As Seen in Gaiam) REPLACEMENT FILTER ONLY for the CuZn Bath Ball Filter - Search ASIN# B0012045EO to locate Complete System Listing Reduces Chlorine for up to 12 Months Once Activated, Best in Class 1 Year Lifetime Naturally Softens Water for Smoother Skin and Softer Hair Reduces Many Water Soluble Heavy Metals (including lead) Unique Patented Bacteroistatic Media, Easy to Install