FROG® EverClean™ Mineral Sanitizer uses proprietary FROG Sanitizing Minerals® to kill bacteria and balance water – reducing the use of chlorine by up to 50%*. In salt pools, it also extends the life of the salt cell. Placed in the pump basket, the prefilled cartridge works continuously between service visits — no over-chlorinating to bridge the gap. No boosters. No guesswork. No extra inventory. No brainer. Just perfect water, every time.