Be tough on germs in your hot tub, but gentle on your skin with the Lay-Z-Spa® Hydrogenic™ Saltwater Chlorinator. Using innovative technology, the saltwater chlorinator converts salt into a small amount of bacteria-killing chlorine to keep your hot tub crystal clear and clean, while being gentle on your eyes, hair, skin and bathing suit. Another benefit? Without the direct addition of chlorine to your spa, you'll enjoy the nearly scent-free experience of a traditional saltwater pool! Ideal for hot tubs or small pools with water capacities up to 1,400 L (369 gal.), simply add the salt to the water and the system will produce 0.5 grams of chlorine per hour for the perfect ratio of saltwater and chlorine. The rechargeable battery can run for up to 8 hours at a time, and doesn't require any cords or hoses! The chlorinator comes fully assembled and is designed to float on the surface of the water. Plus, the saltwater chlorinator also includes 50 3-in-1 test strips and 25 saltwater test strips so you can always measure the chemical and salt balances of your hot tub water to keep it clean.