FROG® Serene Mineral Cartridge – Spa Floating & In-Line (4 Months)
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Key Features & Benefits
Long-Lasting 4-Month Performance
Each FROG® Serene Mineral Cartridge lasts up to 4 months—or the life of 4 SmartChlor® cartridges—making it one of the most cost-effective long-term spa sanitation solutions available.
Natural Mineral Sanitization
Engineered for seamless compatibility with original mounting points for secure placement.Powered by silver and zinc minerals that work together to kill bacteria and help prevent algae growth. This mineral-based approach reduces dependence on high chlorine levels while maintaining clean, balanced water.
Dual-System Compatibility
Designed to work seamlessly with both floating and in-line FROG systems. Whether upgrading or replacing, installation integrates easily into your existing setup.
Softer, More Comfortable Water
Creates water that’s noticeably gentler on skin, eyes, and hair. The mineral formula helps eliminate the strong chemical odors and irritation commonly associated with traditional chlorine-heavy treatments.
Reduced Chemical Dependence
By supporting chlorine efficiency, the mineral cartridge allows you to maintain sanitation with lower overall sanitizer demand—resulting in a cleaner, more enjoyable soaking experience.
Effortless, Low-Maintenance Care
Simply replace the cartridge every 4 months. No daily testing routines or constant adjustments—just consistent performance and more time to relax.
Product Overview
The FROG® Serene Mineral Cartridge is a patented water care solution that combines silver and zinc minerals to naturally sanitize your spa water. Unlike traditional chemical-only treatments, this cartridge works continuously to destroy bacteria and control algae while conditioning the water for a softer, more comfortable soak. Compatible with FROG® @ease® Floating Systems and FROG® Serene In-Line Systems, it's the perfect choice for spa owners who want cleaner water with less effort.
Frequently Asked Questions
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Each cartridge lasts up to 4 months, making it one of the longest-lasting spa treatments available. This means you only need to replace it 3 times per year.
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Yes! The FROG Serene Mineral Cartridge works with most major spa brands including Bullfrog, Jacuzzi, Sundance, Hot Spring, and Caldera Spas.
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FROG Serene uses mineral technology to reduce chlorine needs by 50%, resulting in softer water, less chemical odor, and easier maintenance compared to traditional chlorine-only systems.
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Installation is simple. For floating systems, insert the cartridge into your FROG @ease Floating System. For in-line systems, place it in the cartridge holder in your spa's plumbing. Full instructions included.
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FROG Serene is designed for traditional sanitizer systems. For saltwater spas, consult your owner's manual or contact our team for compatible water care solutions.
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Hot Tub Things carries genuine FROG Serene Mineral Cartridges with fast shipping and competitive pricing. Order online for delivery right to your door.
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