Tru-Soft® Evaporated Salt Pellets with Rust Inhibitor for water softening are produced from our highest quality salt. They are 99.9% evaporated sodium chloride with virtually no insoluble content. They contain no binding additives and help reduce bridging or mushing in water softening units, which practically eliminates tank clean-out with proper use. Tru-Soft® Evaporated Salt Pellets meet American Water Works Association (AWWA) standards for water softening salt and are NSF certified. Our water softener pellets can help reduce scale buildup on tubs, showers, and fixtures from hard water which can help increase the lifespan of pipes, fittings, heaters, boilers, and other appliances. With the added benefit of a rust inhibitor, Tru-Soft® Evaporated Pellets can help eliminate rust in your water, thereby eliminating rust stains in laundry, on dishes, and in sinks, showers and bathtubs.