Features: * Works with all electric chlorinator systems * Fast dissolving, 100 percent soluble fine-grade evaporated salt * Natural, additive-free for less skin and eye irritation and no strong chlorine odor * No need to mix or measure chlorine, or monitor pool chlorine levels * 99.9 percent high salt purity to help ensure water clarity and system effectiveness What"s In The Box: * Cargill Salt 8526 Diamond Crystal Pool Salt - 40 lb.