The Auto Filter by LWC Ltd., of Maumee, Ohio, is the next evolution in filter technology. The filter features a permanent filter element that never has to be changed, cleaned or replaced. Its unique dump valve can be set to clean the filter element from once a day to once every four hours for up to 60 seconds. Just set the dial! The filter eliminates costly service calls, filter changes and guesswork. It’s the perfect solution for customers who can’t change their filters, won’t change them or say they will but don’t.