100% Better Machine Protection* Get 100% Better Machine Protection* for your dishwasher with Finish Salt. For better dishwasher performance, use Finish Additives together with Finish detergents. *At least 2x better limescale deposit protection when using Finish Salt with Finish detergent vs using Finish detergent alone. Finish Salt provides 100% Better Machine Protection*, helping prevent limescale depositing and protecting your dishwasher, by softening water when used in conjunction with the softening unit. It also helps prevent stains and watermarks accumulating on your dishes & glasses. Important: Finish Salt is specially designed for your dishwasher with 99% purity. Other salts may contain impurities that will damage the anti-cal unit of your dishwasher.