Salt cells are the component within a salt system that converts the salt into chlorine. It's important to clean your cell as needed and manually check your salt levels. We carry a large number of the most popular replacement cells sold in the industry. All of our replacement salt cells are new carry the manufacturers warranty. As with all of our products, we do not sell any used or refurbished salt cells. Whether you have Goldline, Hayward, Ecomatic, Autopilot, Aquapure, CompuPool or most any other salt system, we have what you're looking for.