Serene Replacement Mineral and Bromine Cartridge Kit for use with Hot Tub Serene Floating Sanitizing System - Prefilled for Quick & Easy Hot Tub Maintenance - 4 Month Bundle

Cartridges for Hot Tub Maintenance: Serene Mineral and Bromine Replacement Cartridges are engineered for the Serene Floating System. The set contains one replacement mineral cartridge and four replacement bromine cartridges. Innovative Technology for Clean Water: The Serene system merges a patented mineral formula with a low level of bromine to produce clean, silky soft Fresh Mineral Water in your hot tub. Long-Lasting Performance: The Serene mineral cartridge works for four months, and each bromine cartridge works for 2 to 4 weeks. Prefilled cartridges streamline hot tub maintenance. Hot Tub Sanitization: With the Serene system, you use up to 50%* less bromine, making the water gentler on skin, swimsuits, and your hot tubs surfaces. The slow-dissolving bromine generates far less odor than traditional chlorine. Water Care Expertise: With over 25 years of experience in simplifying water care and keeping pool, hot tub, and swim spa water sanitized, the patented Mineral Technology and prefilled cartridges help deliver cleaner, clearer, and softer water