[Efficient Water Purification]: The mineral filter rod included with this Hot Springs silver ion cartridge provides multi-layer filtration, effectively removing impurities from the water for a clean and refreshing spa experience. [Easy Installation and Low Maintenance]: This Hot Springs silver ion cartridge is easy to install, with no need for heating or complicated setup. It integrates seamlessly with your existing flow, providing convenience and hassle-free maintenance. [High-Quality Material]: Made from robust materials such as zeolite, anion, zinc, dechlorination ball, and VC ball, these mineral filter rods are designed to withstand use in both cold and slightly warm bathtubs. The heavy-duty construction ensures long-lasting performance and effective filtration. [Reduces Skin Irritation]: The active ingredient, zinc, in the Hot Springs silver ion cartridge helps minimize irritants in the water, promoting healthier and more comfortable skin during your spa sessions. [Versatile Compatibility]: These silver ion cartridges are designed to be compatible with various bathtubs, offering versatility and can be used with different models for enhanced water purity and quality. Note: All data is measured manually. Please allow 1-3 cm error due to different light and screen. There may be color differences. Please refer to the actual item received.