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💧 Elevate your soak with cleaner, softer water — because your hot tub deserves the best!
The FROG Serene Replacement Mineral and Bromine Cartridge Kit is a 3-month supply designed for the FROG Serene Floating Sanitizing System. Featuring a patented mineral formula combined with low-level bromine, it reduces chemical use by up to 50%, delivering gentle, odor-free, and long-lasting hot tub water care. Prefilled cartridges simplify maintenance, with the mineral cartridge lasting 4 months and bromine cartridges lasting 2-4 weeks each, ensuring consistently clean, soft, and skin-friendly water.
| ASIN | B0B19BQZG4 |
| Best Sellers Rank | #3,687 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #14 in Hot Tub Accessories |
| Brand | FROG |
| Brand Name | FROG |
| Customer Reviews | 4.7 out of 5 stars 1,243 Reviews |
| Item Form | Cartridge |
| Item Type Name | Replacement Cartridge |
| Item Weight | 1.8 Pounds |
| Manufacturer | King Technology |
| Number of Items | 4 |
| Product Benefits | Controls Algae, Maintains Clean Sanitized Water, Protects Against Skin Irritation |
| UPC | 722906038573 |
| Unit Count | 4.0 Count |
S**Y
Best hot tub product!
This is the product that changed my hot tub system. Makes it so easy to keep clean now with less chemicals. Stabilizing the water for a longer time. No more chlorine smell great quality and functions great.
J**A
Good price
If you have a frog spa theater this product works great.
A**R
Great product
Easy to use
A**R
Didn’t take very long to get
Came on time and it works very well. I’m very pleased with the product.
P**D
Great! But dont throw away the used ones!
These are excellent as a quick and simple way to add minerals and bromine to your spa if you have the Frog system. However they are fairly expensive for the convenience. Protip! When you are done using one of the bromine cartridges, you can pop the top off (several tutorials online) and refill them with your own bromine tabs. This will save you a ton of money down the road.
M**T
Love this product for my spa!
Work really well for keeping your hot tub chemicals balanced. I struggled for months prior to getting this and now I don’t have to think about them really at all. Highly recommended. Minimal odor. Keeps water balanced and clear.
K**R
The spa system to go with
This system is better than the other frog ball type system. It seems to last a little longer and the cost is lower.
J**P
Nice
This brand/supplier offers a very good filtration system for spa water.
Trustpilot
2 days ago
4 days ago