Hero image 0 of FROG Serene Replacement Bromine Cartridges for Use with Hot Tub FROG Serene Floating Sanitizing System - Prefilled for Quick & Easy Hot Tub Maintenance - 1 Pack, 0 of 7
FROG Serene Replacement Bromine Cartridges for Use with Hot Tub FROG Serene Floating Sanitizing System - Prefilled for Quick & Easy Hot Tub Maintenance - 1 Pack
Key item features
- System Compatibility: Designed for use with FROG Serene floating and in-line hot tub sanitizing systems, ensuring seamless integration and optimal performance.
- Enhanced Sanitation: These bromine cartridges work in conjunction with FROG Sanitizing Minerals to effectively eliminate organic matters, supporting cleaner and clearer hot tub water.
- Extended Use: Each cartridge provides 2 to 4 weeks of use and, when paired with FROG Minerals, can reduce bromine consumption by up to 50% compared to minimum ANSI recommended levels.
- Gentle Water: The sanitizing system makes hot tub water easier on skin, swimsuits, and hot tub surfaces, while bromine's slow dissolution helps regulate levels and reduce odors.
- Convenient Maintenance: Prefilled cartridges allow for quick and easy installation, and are recyclable once empty, simplifying hot tub upkeep.
- Expert Watercare: FROG offers over 25 years of experience in water care, utilizing patented Mineral Technology and prefilled cartridges for cleaner, clearer, and softer water.
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Specs
- Tab dimensions2.1 in
- Size8.2 oz
- ManufacturerKing Technology
- Has written warrantyNo
- Model01-14-3824
- Has nrtl listing certificationN
Current price is USD$15.95
Price when purchased online
- Free shipping
Free 30-day returns
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Columbus, 43215
Arrives by Sat, Apr 25
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Sold and shipped by Pattern|Pro Seller
4.677777777777778 stars out of 5, based on 12271 seller reviews(4.7)12271 seller reviews
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Starting from $14.00
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About this item
Product details
Keep your hot tub in great condition and ready for use with FROG Serene Bromine Replacement Cartridges. These high-quality replacement cartridges are specifically designed for FROG Serene hot tub systems, ensuring seamless integration and optimal performance. Experience enhanced water sanitation with the complete FROG Serene Sanitizing System of Sanitizing Minerals and a low level of bromine to effectively eliminate organic matters. This innovative approach reduces bromine use by up to 50%*, making the water gentler on your skin, swimsuits and the surfaces of your hot tub. Say goodbye to harsh chemicals and enjoy a more comfortable and enjoyable soak every time. Bromine slowly dissolves in hot water so it’s easier to regulate, has far fewer odors and is less impacted by pH swings, making hot tub sanitizing more effective. Designed for convenience and longevity, each bromine cartridge lasts between 2 to 4 weeks, minimizing the need for frequent replacements. The prefilled cartridge allows for quick and easy installation and is recyclable when empty. Upgrade to the FROG Serene Sanitizing System with FROG Serene Mineral Cartridges (sold separately) and FROG Bromine Cartridge replacements today and enjoy effortless hot tub management with superior sanitation and water quality. For more than 25 years, FROG has sanitized pools, hot tubs and swim spas with its innovative, patented Mineral Technology that makes water care easier. FROG's prefilled cartridges mean no mess, no guess and no stress water care for your pools, hot tubs and swim spas. Each FROG product helps make your water cleaner, clearer, softer and easier. No matter what size pool, hot tub or swim spa you have, FROG has a solution for it. *Compared to the minimum ANSI recommended bromine level of 2.0 ppm for a residential hot tub.
- Cartridges for Hot Tub Maintenance: FROG Serene Bromine Replacement Cartridges are designed for FROG Serene floating and in-line hot tub sanitizing systems
- Enhanced Sanitation with Bromine Cartridges: These cartridges sanitize the water along with FROG Sanitizing Minerals
- Long-Lasting Cartridge Use: Each FROG Serene Bromine Cartridge lasts 2 to 4 weeks, and when used with FROG Minerals, reduces bromine use by up to 50%*; once the cartridges are empty, you can recycle them
- Support Cleaner Hot Tub Water: Our FROG Serene Bromine Replacement Cartridges support cleaner and clearer water, making the hot tub water easier on skin, swimsuits and your hot tub’s surfaces
- Water Care Expertise: FROG has more than 25 years of experience making water care easier & keeping pool, hot tub and swim spa water sanitized; FROG's patented Mineral Technology and prefilled cartridges create cleaner, clearer, softer water
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Specifications
Chemical water treater type
Floating Collapsible Spa Bromine Dispenser
Tab dimensions
2.1 in
Brand
FROG
Size
8.2 oz
Warranty
Warranty information
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Customer ratings & reviews
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Showing 1-3 of 11 reviews
Feb 5, 2026
Rhino30
5 out of 5 stars review
Verified Purchase
Frog Spa Care Fan
We just recently purchased a spa and the Frog system makes it so much easier to maintain. We have had a spa in the past when this system was not available. Dealing with the unpredictable floating chemical dispenser was always a pain. This system is a huge improvement that really cuts down on the time it takes to maintain your spa. It tends to be more expensive than the traditional maintenance items but to me the ease of use makes it worth it. Will continue to purchase their products.
Incentivized Review
Helpful?3I9PVA18Y61U1472777159
Dec 16, 2025
fzrpaul
5 out of 5 stars review
Verified Purchase
An essential way to add chemicals to a hot tub
Even though the Spa Frog cartridge products are essential for automatic/easy dosing for your hot tub, they are pricey. Yet, because having to NOT need constant monitoring to the water quality (because these are auto dispensing), it helps both nubies and veterans to spa use a breeze. Just wish the pricing doesn't keep on rising.
Incentivized Review
Helpful?3I9PVA18Y61U1472777159
Dec 25, 2025
Amanda
5 out of 5 stars review
Verified Purchase
Nice and clean
Simple to use and good quality.keeps my hot tub clean and sanitized!
Incentivized Review
Helpful?3I9PVA18Y61U1472777159
