The CuZn Bath Ball Water Filter is for people who want a quick and easy way to fill their bathtub with more enjoyable water for bathing & washing purposes. The CuZn Bath Ball's filtration process utilizes KDF-55 Filtration Media Technology (Search "KDF Fluid Treatment" to Learn More) in an ultra high efficiency reticulated disc format that is designed and produced exclusively for CuZn's Bath Ball Water Filter System. The innovative KDF-55 Filter Media Disc technology utilized inside the CuZn Bath Ball is dramatically more effective than the granular filtration media alternatives. Additionally, unlike granular media filters that require a disposable plastic cartridge housing, the CuZn Bath Ball Water Filter's KDF-55 Filter Media Disc is an eco-friendly solution that is 100% high value recyclable material. The CuZn Bath Ball Water Filter System is designed to alleviate water quality issues that may contribute to dry, itchy, flaky skin, brittle hair, eye, lung and sinus irritation. Enjoy a more pleasant bathing experience, smoother skin & softer hair with the CuZn Bath Ball Water Filter! Compact filter systems like The Bath Ball Water Filter are NOT SUITABLE for addressing serious water quality issues like high iron, extreme hardness, rust or sediment most commonly found in untreated private well water supplies. In order to properly address serious water quality issues, a larger Whole House Water Treatment System is required. If you've got serious water quality issues, contact CuZn's Customer Support Team for free expert advice and quote for a water treatment system that will eliminate your serious water quality issues once and for all. All types of bath & shower filters, including the CuZn Bath Ball Water Filter, will NOT reduce TDS or PPM type meter readings. TDS or PPM type meters are only intended to monitor the performance of our CuZn 5 Stage Reverse Osmosis System type filter systems.