The FROG® is a brand of mineral sanitizing systems for swimming pools and hot tubs from King Technologies. This patented and EPA registered technology creates Fresh Mineral Water® that is Cleaner because it kills bacteria two ways, Clearer because it helps keep the pH in line for better water clarity, Softer as it conditions the water and uses up to 50% less chlorine and Easier to use with pre-filled pacs for no mess, no guess and no stress water care.
Active Ingredient: Trichloro-s-Triazinetrione 99%
Love this thing never have to test our pool it just works
Long lasting and Does the job! TOUGH on SCUM and always KEEP IT CLEAN! This is the refill pack, AWESOME!