One easy step delivers a full season of crystal-clear, soft feeling water. Put Instant FROG^® in your skimmer basket and it delivers FROG’s fresh sanitizing minerals for 6 months. FROG’s sanitizing minerals kill bacteria and reduce chlorine use up to 50%*. That means the harsh effects of chlorine are out, and a season of pool fun is in. It’s prefilled for no mess, no guess and no stress. It’s a notable difference!