Windsor® Rust Remover™ Pellets are designed for use in areas where water has high iron content. Rust Remover™ combats issues caused by iron and rust and can remove 15X more iron than plain salt. Rust Remover™ also reduces rust build-up in your softener and helps your softener run more efficiently. Rust Remover™ pellets come in a 18.1 kg bag that is easy to carry, open and pour thanks to our special bag features. The easy-open tear opens wide to allow salt to pour easily and flow freely. The bag also features a rigid plastic handle for more comfortable carrying and lifting.