Spa Mineral Stick, Hot Tub Stick Silver Ion Cartridge Ag+ Mineral Stick Filter with 4 Months Lifetime for Most Hot Tub(2-Pack, Yellow)

Work as described

Appears the same as “name brand” products at a way better price. Working fine.

Just the right size and you can't beat the price

We can really notice the difference when using the Ion cartridge.

2nd purchase, works great in our hot tub.

Just installed these, can't say i noticed a huge difference. Installed very easy, only down side is the box they arrived in was super damaged, but the filters seemed ok.

Works as advertised.

I cant tell if these make any difference or not. are the pellets inside supposed to dissolve over time?