SPA FROG Replacement Mineral Cartridge is to be used with:

• SPA FROG In-Line Bromine and Mineral Systems (these systems are installed at the spa factory; not sold here)
• SPA FROG Floating Bromine and Mineral Systems

 The minerals control bacteria and algae.  With minerals, Bromine can drop from 2 PPM to 1 PPM and still remain effective.  The two together = great water.  

Adding a spa ozone generator to your hot tub further reduces chemicals including Bromine, shock, pH Up, pH Down, Metal Control.  Your spa water will be pure and clean - you'll love it!

Using recylcled materials and no electricty means this mineral purifier an eco-friendly product, purifying your water naturally with less waste.

This SPA FROG mineral purifier lasts 4 months (or when you change your water, no longer than 6 months), and comes wiith an easy reminder dial.