Flippin Frog Pool Sanitizer 2K-5K gals: Flippin’ FROG®’s prefilled cartridges snap together and create Fresh Mineral Water in your pool. It kills bacteria 2 ways – with Fresh Minerals and a low level of chlorine. And flips upside down when it’s time to refill. Forget the mess, guess or stress, you’ll flip over Flippin’ FROG’s easy water care.