The Purezone is compatible with spa and pool systems that use mineral sanitizer systems like PoolRx, Nature2, Nature2 Fusion and Pool Frog.  Purezone is compatible with spa systems that use mineral sanitizer sanitizer systems like the FROG @ease In-Line System.  

Note:  These systems use minerals and a low amount of chlorine to sanitize the pool. They recommend a low level of Free Chlorine of about 0.5-1.0 ppm.  After you activate your Purezone device, please contact Purezone Support by submitting a Support Request.  We can adjust your FC Free Chlorine Target level lower so that you don't receive Low FC alerts in the Purezone app.