Professional Grade Solar Salt Catalog Home Water Filtration Professional Grade Solar Salt Manufacturer : Kissner Salts Description Evaporated naturally by sun & windUltra high 99.7% purity softener saltMinimizes accumulation in brine tankResists bridging and mushing in tankWhite, opaque appearanceLow insoluble contentNSF Certified40lb and 50lb bags. Discounts for pallet quantities. Rates Please contact us for current pricing and availability.