BlueStars Hot Tub Silver Ion Cartridge - Mineral Sticks for Hot Springs Spa, Spa Silver Ion Ag+ Cartridge, Freshwater Mineral Sanitizer Keep Water Crystal-Clear for 4 Months (2 Packs)

PACKAGE & SPECIFICATIONS: Includes 2 x Hot Tub Silver Ion Cartridge Sticks and 1 x Detailed Instruction Manual. This spa mineral stick fits most standard spas with 1-1/4" filter hole and 6.5"-16" length for effortless installation. Recommended replacement every 2 - 4 months for optimal performance. Please carefully verify your existing filter size and part compatibility before purchasing to ensure proper fit and function.ENHANCED SPA EXPERIENCE: This hot tub mineral cartridge works with your existing filtration system to deliver multi-layer purification. The combination of activated carbon, silver ions, and mineral media helps reduce impurities, odors, and chlorine, improving water clarity and freshness. It supports a cleaner, more balanced spa environment for a more consistent and refreshing spa experience.DURABLE AND HEAT-RESISTANT MATERIAL: Built with a durable ABS outer shell designed for spa environments, this cartridge resists cracking and deformation under temperature changes. The internal filtration media is securely contained to prevent leakage, supporting consistent performance in cold, warm, and hot water conditions while allowing easy cleaning and long-term use.MINERAL PURIFICATION SYSTEM: Filled with multiple natural mineral filter balls, this cartridge combines activated carbon and silver ions to help reduce residual chlorine and impurities. Additional mineral components support water conditioning and help minimize the need for harsh chemicals, making water gentler and more balanced during regular spa use.TOOL-FREE DROP-IN DESIGN: Simply place the cartridge into your existing spa filter compartment following the included instructions. No tools or system modifications required. Designed to work with standard flow rates, each cartridge can last up to 4 months and treat up to 500 gallons, reducing the need for frequent replacements and lowering maintenance effort.100% LIFETIME PROTECTION: Enjoy reliable performance with our lifetime protection, ensuring that your product will always be covered for any defects or issues that may arise.