Product Information:Efficient and maintenancefree, this durable, corrosionproof automatic swimming pool chlorinator is ideal for new and existing swimming pools and works automatically with your pump and filter system. This chlorine generator is engineered to stand up to the toughest pool conditions and provide years of dependable performance. Using large or small slowdissolve TriChlor tablets, or sticks, the dial control valve allows you to control and adjust the rate of feed. The EasyLok threaded cover enables convenience and safety when adding tablets or sticks, and the unique Finger Release catch provides extra security. These easytoinstall swimming pool chlorinators are a breeze even if you plan to do it yourself. Features:#149; InLine Feeder#149; Includes full instructions#149; Uses large or small, slow dissolve Trichloro S Tablets#149; Dial Control Valve lets you control and adjust the rate of feed#149; EasyLok threaded cover for safe and convenient access to add Tablets#149; Unique finger release catch provides extra security#149; Simple installation for doityourselfers Specifications:#149; Pipe Size: 11/2" FIP#149; Chemical Capacity: 4.2 lbs.#149; Feeder Width: 81/4"W#149; Feeder Height: 151/4"H