FROG® Serene® Floating System

Complete Hot Tub Sanitizing Floater creates Fresh Mineral Water

Average Rating: 4 44 Reviews

FROG Serene keeps your hot tub clean while eliminating the work and the guesswork. Instead of spooning in chlorine 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.

Pool Foreground Hot Tub Foreground
50% Less

Lower your bromine use up to 50%* with FROG minerals

Bromine Disolves

Unlike chlorine, bromine slowly dissolves in hot water so it’s easier to regulate. Plus far less odors.

Self Regulates

Bromine is less impacted by pH swings ensuring sanitizing effectiveness

Soft Feeling

Soft feeling water that’s easier on skin, swimsuits and spa surfaces

Set and Forget

Just set it and forget it for weeks at a time

Money Back Guarantee

Money back guarantee

FROG Serene Family of Products

Video Introduction to FROG Serene Floating System


Additional Information

The FROG Serene Floating System Fresh Mineral Water hot tub system utilizes mineral and bromine cartridges designed to destroy bacteria, reduce bromine use by up to 50% and improve the overall quality of hot tub water. The minerals last up to four full months, while the bromine can be dialed in to meet your precise needs, usually about three weeks per cartridge. Just snap the two cartridges into the floating cap and relax!

Load More

Load More

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.

Load More

* Compared to the minimum ANSI recommended bromine or chlorine level of 2.0 ppm for a hot tub

Newsletter Sign Up
Click here for free FROG test strips

See Our Customer Reviews

  1. kingbea

    Rating: 4

    first time using Frog products. Working great.

  2. Glenn Allen

    Rating: 5

    Very easy to use.

  3. Patrick

    Rating: 5

    Awesome product it has made spa maintenance a breeze no more adding bromine every week. I highly recommend!!!

  4. Janice Trent

    Rating: 5

    I was having severe cloudy water with no luck in fixing it until I switched to flippin frog now water is crystal clear love it glad I switched

  5. Marty Povilitus

    Rating: 3

    We wish the mineral pack lasted longer because we use our pool between 3-4 months a year which means we waste about half of the total life of the minerals.

  6. Derek L

    I have been using the Spa Frog system for about 7 years. It is absolutely awesome! Keeps the hot tub very clean and there is minimal bromine odor. In my experience it is more effective and last longer if you keep up the PH and alkaline to the higher end of acceptable levels. I am switching to the frog system for my pool next season

  7. Sereno Don

    Rating: 5

    We’ve been using the FROG for just over a month and just changed the chlorine cartridge 2 days ago. Loving this system. We had tried Baquacil, like we use in our pool, but the warm mist gagged us, so we switched to Bromine. Going to convert our 21′ above ground pool to FROG next year.

  8. diana

    Rating: 5

    Simple, trouble-free product to use ? Love my FROG!

  9. Elaine

    After your initial set up, what should you use for occasional shock chlorine or non chlorine?

    • Tom Sager

      Hi Elaine,

      We recommend FROG Jump Start for occasional shock. Find your local dealer here and ensure they have it in stock.

  10. pa ul cohen

    Rating: 5

    Been using the system for 5 years really very easy to use and never a problem.

Add a review

Your email address will not be published. Required fields are marked *