Natural Chemistry 7404 Pool Salt Water Maintenance Kit Specifically engineered for pools using chlorine generators 1-By-5.5-pound bag of salt water magic salt/mineral mix 1-by-1-liter bottle of salt water magic for organic and phosphate removal Restores necessary salt/mineral levels required for proper chlorine generator performance Contains no stain causing water softener additives Protect pool surfaces from metal staining and prolong the life of the generator; phosphate remover reduces phosphate (algae food source) levels