Diamond Crystal Iron Fighter Salt Block

Made with up to 99.8% pure salt. Virtually 100% water soluble, these water softener salt blocks are specially formulated to resist mushing and bridging in the brine tank, helping to keep your softener clean and trouble-free. The Iron Fighter^® water softener salt block (up to 99.6% pure salt) contains an FDA-approved, highly effective rust remover which helps to prevent rust stains on laundry and household fixtures.

Eligible for our Frequent Buyer Salt Card Program.