Tired of your dishwasher leaving spots and residues on "clean" dishes? The NuvoH20 CitraCharge Pro spot-free dishwashing system (Model: CitraPro) uses the power of citrus to remove hard-water spots and film, makes your dishes sparkle with no residues from food or detergent, and saves you money by using 75% less dishwasher detergent. Cartridges last for about 3 months, and this system comes with the first cartridge. Based on the same industrial-strength formula used in commercial kitchens for over 30 years, CitraCharge Pro has been adapted for home use and can tackle the most difficult problems with hard water. The CitraCharge agent binds with hard-water mineral ions and keeps them from sticking to your dishes, glassware, silverware, and even the inside parts and plumbing of your dishwasher. It helps remove existing scale deposits and prevents them from forming, which will extend the life of your dishwasher. This compact system is easy to install under your sink; and replacing the quick-connect cartridges is a snap. Enjoy truly clean, spotless dishes with the NuvoH20 CitraCharge Pro dishwashing system, which is supported by a 30-day, money-back guarantee and a two-year warranty.