The CL200 Inline Chlorine Feeder Pool is a round, plastic feeder designed for in-ground pools. With a height ranging from 16 to 25 inches and a diameter less than 5 inches, it is easy to install and use. This new feeder is a convenient and efficient way to keep your pool water clean and clear by automatically dispensing chlorine. It comes in a pack of 1 and is a must-have for maintaining the clarity of your pool.