Filter-Mate Granular Softener Cleaner is designed to chemically clean a fouled resin bed in water softeners and restore the exchange capacity of the resin. Over time, most types of water softening resins can become fouled with iron and other contaminants, which negatively impact the performance of the ion exchange system. This cleaner effectively removes these impurities, helping to maintain optimal softener function and prolong the life of your system. The product comes in a 1.5 lb bottle, making it easy to use and store. Model Number: TO06N