DetailsOur premium-purity water softener salt contains up to 99.8% pure salt. Virtually 100% water soluble, these compacted pellets are specially formulated to prevent mushing and bridging in the brine tank—helping to keep your water softener clean and trouble-free. Our patented 2-handle, 40 and 50 lb. bags make lifting and carrying easier than ever. Recommended for all water softeners.