50 pound bag of Diamond Crystal Hardi-Cub water softener salt
Made with up to 99.8% pure salt, this premium-purity softener salt has a uniquely compacted shape for extra hardness. Virtually 100% water soluble, it is specially formulated to resist mushing and bridging in the brine tank-- helping to keep your softener clean and trouble-free.
Recommended for use in most water softeners.