Ice-O-Matic Water Filters are the perfect complement to your Ice-O-Matic ice machine. You may be aware the water filters work to improve the quality of your ice, making it taste better and allowing it to remain scent-free, but Ice-O-Matic water filters do even more for your ice machine. They improve the quality of the water used by your ice machine, improving ice machine function, and increasing ice machine longevity. With the purchase and replacement of an Ice-O-Matic water filter, Ice-O-Matic will extend the warranty on their ice machine's evaporator as well - to an unprecedented seven years. Ice-O-Matic is the only ice machine company with the confidence to offer this type of coverage. This warranty offer also speaks volumes as to how confident Ice-O-Matic is in the function of their water filters. On average, your water filter should be changed every six months, but some areas with poor water quality may require their Ice-O-Matic water filter to be changed more frequently. Conversely, if your water is cleaner and mineral free, your filter may be required to be changed less frequently, around every eight months. No Ice-O-Matic ice machine should be allowed to operate without an appropriate water filter, as it will also reduce the risk of slime, mold, or limestone buildup in your ice machine- things that can lead to health code violations and ice machine failure.