Your supplied Sanitizer is the Auto Chemical Feeder from Hayward®. Efficient and maintenance-free, this automatic chlorinators is ideal for pools or spas and works automatically with your pump and filter system. A chemical-resistant Viton® seal provides heavy-duty durability and the Easy-Lok™ threaded cover ensures a corrosion-proof seal. Uses large or small slow-dissolving tablets Easy-Lok™ threaded cover provides access to add tablets Chemical storage capacity of 9lbs Additional Information Hayward automatic chlorinators and brominators are ideal for in-ground applications during new pool construction or aftermarket installations. Models are available for in-line and off-line configurations to accommodate most capacity, plumbing and space considerations. All units incorporate a durable ABS body along with a high quality Viton® seal and an ergonomically designed cover to allow for simple lid removal.