Find A Dealer
MENUMENU
- Hot Tub Products
- All Hot Tub Products
FROG @ease – SmartChlor
- FROG @ease Floating System
- FROG @ease In-Line System
- FROG @ease 2-in-1 Water Care
- FROG @ease for Bullfrog Spas
- FROG @ease for Jacuzzi Hot Tubs
- FROG @ease for Sundance Spas
- FROG @ease Test Strips
FROG Serene – Bromine
- FROG Serene Floating System
- FROG Serene In-Line System
- FROG Test Strips for Hot Tubs
Additional Products
- FROG Filter Mate
- FROG Jump Start
- FROG Maintain
- FROG Fresh Mineral WaterLearn More
- FROG Water Care BLOGHow to Conquer Common Hot Tub MistakesEverything You Need to Know About Foamy Hot Tub Water
- Pool Products
- All Pool Products
Pools 2K to 5K
- Flippin’ FROG
Pools 5K to 10K
- Flippin' FROG XL
Pools up to 25K
- POOL FROG Model 6100
- FROG Leap
- FROG Pool Tender
- INSTANT FROG
Pools up to 40K
- POOL FROG Model 5400
- POOL FROG XL PRO
- FROG Leap Twin
Support Products
- FROG Test Strips for Pools
- FROG BAM
- FROG Leap All-Out
- FROG Leap Pool Wake-Up! / Pool Hibernation
- FROG Fresh Mineral WaterLearn More
- Swim Spa Products
- All Swim Spa Products
- FROG @ease for Swim Spas
- FROG @ease Test Strips
- FROG Maintain for Swim Spas
- FROG Fresh Mineral WaterLearn More
- FROG Water Care BLOG
- Fresh Mineral Water
Fresh Mineral Water
- Fresh Mineral Water for Hot Tubs
- Fresh Mineral Water for Pools
- The Truth about Salt Water Pools
- Fresh Mineral Water for Swim Spa
- FROG Fresh Mineral WaterLearn More
- Water Care Experts
Water Care Experts
Hot Tub Water Care Experts
- Diagnose a Problem
- Hot Tub School
- Hot Tub Glossary
- Hot Tub FAQs
- Water Balancing Guide for Hot Tubs
Pool Water Care Experts
- Diagnose a Problem
- Pool School
- Pool Glossary
- Pool FAQs
- Water Balancing Guide for Pools
Swim Spa Water Care Experts
- Diagnose a Problem
- Swim Spa School
- Swim Spa Glossary
- Swim Spa FAQs
- Water Balancing Guide for Swim Spas
- FROG Fresh Mineral WaterLearn More
- Water Care Blog
Water Care Blog
Hot Tub Articles
- 8 Steps to Clear Up Cloudy Hot Tub Water
Pool Articles
- Cloudy Pool water? Get Expert Tips for a Crystal Clear Pool
Swim Spa Articles
- 10 Reasons A Swim Spa Will Change Your Life
- FROG Fresh Mineral WaterLearn More
- About FROG
About FROG
- FROG Mobile App
- FROG Newsletter Signup
- Manuals & Documents
- Product Registration
- FROG Fresh Mineral WaterLearn More
- FROG Water Care BLOGHow to Conquer Common Hot Tub MistakesEverything You Need to Know About Foamy Hot Tub Water
- Contact FROG
- Hot Tub Products
- FROG @ease - Smartchlor
- FROG @ease Floating System
- FROG @ease In-Line System
- FROG @ease 2-in-1 Water Care
- FROG @ease for Bullfrog Spas
- FROG @ease for Jacuzzi Hot Tubs
- FROG @ease for Sundance Spas
- FROG @ease Test Strips
- FROG Serene - Bromine
- FROG Serene Floating System
- FROG Serene In-Line System
- FROG Test Strips for Hot Tubs
- Additional Products
- FROG Filter Mate
- FROG Jump Start
- FROG Maintain
- FROG @ease - Smartchlor
- Pool Products
- Pools 2K to 5K
- Flippin’ FROG
- Pools 5K to 10K
- Flippin FROG XL
- Pools up to 25K
- POOL FROG Model 6100
- FROG Leap
- FROG Pool Tender
- INSTANT FROG
- Pools up to 40K
- POOL FROG Model 5400
- POOL FROG XL PRO
- FROG Leap Twin
- Support Products
- FROG Test Strips for Pool
- FROG BAM
- FROG Leap All-Out
- Pools 2K to 5K
- Swim Spa Products
- FROG @ease for Swim Spas
- FROG @ease Test Strips
- FROG Maintain for Swim Spas
- Fresh Mineral Water
- Fresh Mineral Water for Hot Tubs
- Fresh Mineral Water for Pools
- The Truth about Salt Water Pools
- Fresh Mineral Water for Swim Spa
- Water Care Experts
- Water Care Experts for Hot Tubs
- Diagnose a Problem
- Hot Tub School
- Hot Tub Glossary
- Hot Tub FAQs
- Water Balancing Guide for Hot Tubs
- Water Care Experts for Pools
- Diagnose a Problem
- Pool School
- Pool Glossary
- Pool FAQs
- Water Balancing Guide for Pools
- Water Care Experts for Swim Spa
- Diagnose a Problem
- Swim Spa School
- Swim Spa Glossary
- Swim Spa FAQs
- Water Balancing Guide for Swim Spas
- Water Care Experts for Hot Tubs
- Water Care Blog
- Hot Tub Articles
- 8 Steps to Clear Up Cloudy Hot Tub Water
- Pool Articles
- Cloudy Pool water? Get Expert Tips for a Crystal Clear Pool
- Swim Spa Articles
- 10 Reasons a Swim Spa Will Change Your Life
- Hot Tub Articles
- About Us
- FROG Mobile App
- FROG Newsletter Signup
- Manuals & Documents
- Product Registration
- Contact Us
Complete Hot Tub Sanitizing Floater creates Fresh Mineral Water
4
53 Reviews Read Reviews | Write Review
FROG Serene keeps your hot tub clean while eliminating the work and the guesswork. Instead of spooning in bromine daily, you simply replace a pre-filled cartridge about once a month. FROG Serene works by killing bacteria in two ways with sanitizing minerals and a very low level of bromine. The resulting Fresh Mineral Water® has a completely different quality that provides the serene feeling you’re looking for.
Lower your bromine use up to 50%* with FROG minerals
Unlike chlorine, bromine slowly dissolves in hot water so it’s easier to regulate. Plus far less odors.
Bromine is less impacted by pH swings ensuring sanitizing effectiveness
Soft feeling water that’s easier on skin, swimsuits and spa surfaces
Just set it and forget it for weeks at a time
Water Balancing Guide
Newsletter Signup
Additional Information
Within 60 days of purchasing a FROG® Serene® Floating System or FROG® @ease® Floating Sanitizing System, if you are not completely satisfied, we will refund your money or replace the system. To find more information, please see Satisfaction Guarantee.
What size hot tub will FROG Serene work in?
Hot tubs 150 to 600 are perfect for FROG Serene.
How does FROG Serene compare to other bromine floaters or using chlorine?
If you are tired of smelly chlorine odors and having to spoon in chemicals every time you use your hot tub, SPA FROG is for you. FROG Serene is not just bromine. It contains FROG minerals that destroy bacteria so you need up to 50% less bromine. The result is soft water without bleached suits or smelly odors.
How long do the mineral and bromine cartridges last?
The mineral cartridge lasts four months or whenever the hot tub is drained and refilled. The bromine cartridge lasts 2-4 weeks.
Can I remove SPA FROG from the spa when in use?
Yes. Simply turn it upside down on any surface so the water fills the green holder and doesn’t make a mess. Just remember to replace it when you exit the tub.
The @ease System combines the proven FROG mineral formula for killing bacteria with SmartChlor Technology that maintains a consistently low chlorine level for weeks.
Unlike normal chlorine that is used up when you get in, SmartChlor continues to maintain the same level which is up to 75% less than hot tubs using Dichlor (standard hot tub chlorine). That’s why we call it self-regulating. It goes to work when the hot tub needs sanitizing so there are no frustrating yo-yo chlorine levels. This time-released method is also why less shock is needed to maintain the hot tub.When the SmartChlor Cartridge is depleted the system will flip over as a visual reminder to replace the empty cartridge with a new one.
This technology is so unique it has its own testing method that’s easier than standard test strips.
* Compared to the minimum ANSI recommended bromine or chlorine level of 2.0 ppm for a hot tub
Tracy Russell - July 1, 2022
As a new spa owner, one of my apprehensions was being able to keep my water clean and fresh. I received the Frog Serene Floating System with my purchase and I can not be any happier with the results. So easy to use for a first-timer and it does an excellent job keeping the spa clean.
AP - November 19, 2020
Big fan of the Serene system. 400-gallon Bullfrog tub has gone more than a month with the bromine set on 3. Easy combo with some bulk non-chlorine shock and tub crystal clear.
R. Castellanos - August 19, 2020
great product, use is easy and water feels, smells and looks great.
Matthew Frank - July 2, 2020
Love the ease of use of this product. Get the water balanced initially and mostly set it and forget it. Keeps the water smooth, clear and not harsh smelling. I only additionally need to shock it with some non-chlorine shock after use and good to go.
Dario M - July 23, 2019
Easy, effective and fast! Really good product. Got to love it!
Leave a Review
Related products
Learn More
Learn More
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
Manage consent
Privacy Overview
This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
