Mineral treated spas require the regular testing and balancing of the water for the minerals to perform properly.  Mineral Harmony was developed exclusively for use with mineral treated spa water.

The Mineral Harmony In-Line Companion Kit is the perfect option for hot tubs that come standard with the Frog @ease In-Line Sanitizing System. 
Companion Kit Includes:
Mineral Harmony Boost (16 oz.)
Mineral Harmony Lift (1 lb.)
Mineral Harmony Lower (1.25 lb.)
Mineral Harmony Refresh (1 lb.)
Mineral Harmony Guard (16 oz.)
Mineral Harmony Water Care Reference Card