Finish Dishwasher Cleaner Works By Safely & Effectively Breaking Down And Removing Mineral Build-Up Inside Your Dishwashing Machine, Including Hard-To-Reach Parts Like The Heating Element And Sprayer Arms. You May Think Your Dishwasher Is Clean, But Day After Day, Limescale And Grease Build Up In Hidden & Vital Parts: Filters, Spray Arms And Pipes. Use Finish Dual Action Dishwasher Cleaner Once A Month For An Amazingly Clean, Fresh & Well-Maintained Dishwasher.