Safe Step 4300 Dual-Blend Ice Melter, 20-Lbs.

Safe step 4300, 20 lb, dual blend ice melter, contains sodium chloride & magnesium chloride, formulated with powerful ice breaking minerals to quickly penetrate & melt ice effectively down to -7 degrees fahrenheit, safe for air entrained cold weather concrete that is at least 1 year old when used as directed.