Hayward CL220BR Off-Line Brominator 9 lb. 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.