FROG® Serene™ Replacement Bromine Cartridge for Hot Tubs – Prefilled 1 Pack
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Key Features & Benefits
Prefilled & Ready to Use
No measuring, no mess, no hassle. Each cartridge comes prefilled with premium bromine, making replacement quick and effortless.
Compatible with FROG® Serene™ Floating System
Engineered for seamless compatibility with original mounting points for secure placement.Designed exclusively for the FROG® Serene™ Floating Sanitizing System, ensuring perfect fit and optimal performance.
Consistent Sanitization
The cartridge releases bromine gradually and evenly, maintaining proper sanitizer levels 24/7 for up to 4 weeks.
Reduced Chemical Odor
FROG® technology uses up to 50% less bromine than traditional methods, resulting in softer water with less chemical smell and reduced skin irritation.
Easy Maintenance
Simply flip the cartridge when the indicator shows it's time, then replace when depleted. No daily testing or adjusting required.
Safe & Convenient
Sealed cartridge design means no direct contact with harsh chemicals, making hot tub maintenance safer for you and your family.
Product Overview
The FROG® Serene™ Replacement Bromine Cartridge is a prefilled, drop-in sanitizing solution that works seamlessly with your FROG® Serene™ Floating System. Unlike traditional bromine tablets or granules that require constant monitoring and manual dosing, this innovative cartridge releases a controlled amount of bromine automatically, maintaining optimal sanitizer levels without the guesswork.
Each cartridge is pre-measured and sealed, eliminating the need to handle harsh chemicals directly. Simply replace the spent cartridge with a fresh one every 2-4 weeks (depending on hot tub usage), and enjoy consistently clean, safe water.
Frequently Asked Questions
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Each FROG® Serene™ Replacement Bromine Cartridge lasts approximately 2-4 weeks, depending on your hot tub size, usage frequency, and number of bathers. The built-in indicator shows when to flip the cartridge (at the halfway point) and when to replace it completely.
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Yes! The FROG® Serene™ Floating Sanitizing System works with any hot tub brand, including Bullfrog Spas, Jacuzzi®, Sundance®, Hot Spring®, and more. The floating design means it doesn't require special plumbing or installation.
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This product includes one (1) prefilled FROG® Serene™ Replacement Bromine Cartridge. The cartridge is sealed and ready to install in your existing FROG® Serene™ Floating System.
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The cartridge itself requires no cleaning or maintenance. Simply install it in your FROG® Serene™ floating system, flip it when the indicator shows halfway depletion, and replace it with a fresh cartridge when fully spent. The floating system housing can be rinsed with clean water during cartridge changes.
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No, this is a bromine-only cartridge designed for the FROG® Serene™ Bromine system. If you prefer chlorine sanitization, consider the FROG® @ease® Floating System, which uses a different cartridge technology.
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Hot Tub Things is your trusted source for authentic FROG® Serene™ Replacement Bromine Cartridges. We stock only genuine products and offer fast shipping with free delivery on orders over $100.
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