Hayward CL200 In-line Automatic Chemical Feeder. Uses large or small, slow dissolving tablets. Dial control valve allows for easy feed rate adjustment. Easy-Lok threaded cover for safe and convenient access to add tablets. Unique finger-release catch provides extra security. Durable ABS body and high quality Viton seal for extended life. For more info contact. Mark’s Pool Store. Over 30 Years Experience. This in-line automatic chemical feeder from Hayward is the perfect addition to your pool maintenance routine. Made for use with various types of chlorine tablets, it ensures that your pool stays sanitized and safe to swim in. With its durable construction and easy-to-use design, this chemical feeder is a must-have for any pool owner. The Hayward CL200 model is specifically designed to work with their pool equipment, making it a reliable choice for your pool care needs. Answer them in a timely manner. Thank you for looking..