Interline Simply Genius starter kit + 4 refillsSimple water treatment with the automatic dosing system.Chlorine dispensers are dangerous for children as they are often mistaken for toys. The Simply Genius is mounted outside the pool on the water hose and is therefore not accessible to children in the pool. The fast-dissolving Aquafinesse tablet ensures the water feels soft. Protects sensitive baby skin. Provides crystal clear water, regulates pH. Prevents bacteria from adhering to walls and floors (no slimy pool walls). Effective against algae formation, so no more green water. One cartridge provides approximately one week of carefree water treatment and clean pool water on average. Suitable for garden pools up to 10,000 liters. Thanks to the included hose adapter, Simply Genius fits all commercially available pumps and sand filter systems and is the perfect replacement for your existing chemicals. Supplied with: a Simply Genius chlorine dispenser with universal connector for 32mm and 38mm pool hose, four extra cartridges, two hose clamps, an Aqua Finesse cartridge, and a child lock to secure the system