- Efficient Water Purification: Enhance the clarity and quality of your hot tub water. The mineral stick effectively reduces impurities, ensuring your spa water remains clear and clean for an enjoyable experience. - Natural Mineral Composition: Each mineral stick contains six types of natural mineral balls. These minerals automatically infuse trace elements into the water, minimizing the need for excessive chlorine and bromine. - Long-lasting Performance: Enjoy four months of continuous purification with minimal maintenance. Simply place the mineral stick in your existing filter, and let it work its magic without any hassle. - Easy Installation: The spa mineral cartridge comes with a detailed instruction manual, allowing for a quick and straightforward setup process. Just follow the steps to install it in minutes. - Versatile Applications: Ideal for hot tubs, spas, and whirlpools, this mineral stick can be used in both residential and commercial settings. It is perfect for regular spa users looking to maintain optimal water quality with ease. - Compatibility: Designed to fit most standard hot tub filters, making it a versatile addition to your spa maintenance routine. This mineral stick is a practical solution for anyone seeking a cleaner, healthier spa experience while reducing chemical usage.