(3) GMX 800 Magnetic Hard Water Softener Fuel Conditioners. The item “(3) GMX 800 Magnetic Hard Water Softener Fuel Conditioners” is in sale since Sunday, January 17, 2021. This item is in the category “Home & Garden\Home Improvement\Plumbing & Fixtures\Pumps & Water Filtration Systems\Water Filtration Systems”. The seller is “cybertrader4″ and is located in Snyder, Texas. This item can be shipped to United States.