Magnetic Water Softener Double Power Duplex - No Salt Water Softener - Magnet Water Treatment The very latest magnetic no salt technology for water treatment. Extra heavy Ultra-Powerful Neodymium Magnets more power for $41 than any competitor. Installs Without Tools-Anyone can install. No plumber needed. No plumbing modifications. Reduces minerals, calcium, lime scale in water causing hard water spots. The most comprehensive, best-selling magnetic softener line in the world.