Rated 4.50 out of 5 based on 8 customer ratings
(8 customer reviews)

Spa Frog Mineral Cartridge

$34.99 $28.95

Mineral cartridges last for a full 4 months before needing to be replaced.

  • Spa frog mineral cartridge
  • Refill for use in either the spa frog floating system, or for users of the spa frog inline system
  • Use with companion frog bromine cartridge

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SKU: B000V86MVW Category: Tags: ,


The Power of  Mineral Cartridges

Spa Frog Mineral Cartridge refill for use in either the Spa Frog Floating System, or for users of the Spa Frog Inline System which is factory-installed in the spa. Use with companion Frog Bromine Cartridge.

600 gallons
Mineral Water System for spas up to 600 gallons
Long lasting
The Mineral Cartridge will last four months or until you change water. The Bromine Cartridges will last two to four weeks
Pre-filled cartridges so you don’t have to guess
Easiest water care system, no measuring or filling floaters with pucks
Eliminates bacteria with 50% less sanitizer
Our Bromine cartridges are recyclable


Interested in learning more about this product and get some tips on how to use it? Watch the video below for some valuable information!

8 reviews for Spa Frog Mineral Cartridge

  1. Rated 3 out of 5

    Boheme PDX

    Does it work – hard to tell. I wish there was a refillable option so there wasn’t all this extra plastic going into the landfill. Or that I could buy one that lasted a year instead of quarterly. At least this is better than monthly. Check out spa cuzn for a natural alternative to bromine and no plastic! I’ve made the switch and it’s the most low maintenance spa solution!

  2. Rated 4 out of 5

    Michael M. Bush

    Replaced this in my hot tub the other week, and I think it definitely makes a difference on how the water makes my skin feel when getting out.

  3. Rated 5 out of 5


    This cartridge makes hot tub maintenance a breeze. Pop it in, and let it do its work for clear clean water. It says to replace every 4 months but mine lasts longer than that. Definitely recommend if you don’t like to have to remember to continually add stain and scale control chemicals into your tub.

  4. Rated 4 out of 5

    Charles Ressler

    Not much can go wrong with a mineral cartridge and it is just what I expected. The problem is that I ordered it on June 1 as a Prime Member and it did not arrive until today, June 6. Not the delivery speed I was hoping for.

  5. Rated 5 out of 5


    Arrived as expected and works as expected. Always love the process of getting something ordered and arriving quickly.

  6. Rated 5 out of 5

    Jim Getten

    These keep my hot tub cleaner than anything. They last for months.

  7. Rated 5 out of 5

    Paula Dalby

    We switched from Chlorine to Bromine and this system has been wonderful. The water is nice and clear and we don’t have that awful Chlorine smell. So much better on our skin.

  8. Rated 5 out of 5

    John Schneider (Not the Duke of Hazzard)

    Cost Effective Great Product. It works well with the bromine cartridges to provide clean clear sanitary water.

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