Waterway automatic chlorinators provide a safe and reliable pool sanitation system. The In-Line Chlorine Feeder is the economical way to automatically sanitize your swimming pool without the hassle of adding chlorine daily. This is a fully adjustable in-line pool chlorinator. It easily installs to most swimming pool filter systems between the filter and return opening. This unit fits directly on waterway filters using the included attachments. Easy to use, just add chlorine tablets to the unit, then start the flow of water.