Crystal Quest Bath Ball & Replacement Filter Cartridge Bundle - Water Filter System-Reduce Contaminants for Softer &Smoother Skin-Effortless & Quick Installation| Bundle and Save (White): Our bath ball helps improve water quality by filtering chlorine and impurities, enhancing your bathing experience. Enjoy a refreshing soak that leaves your skin feeling soft while maintaining water clarity. : Designed for durability, this bath ball filter lasts up to 2,500 gallons before requiring replacement. Enjoy numerous luxurious baths without frequent filter changes, making it a cost effective choice. Lifespan may vary based on water quality.