Floating dispenser for pool water maintenance (poolp'o). suitable for above ground pools with or without filtration. monthly treatment is required. 4 actions: sanitizing, antibacterial, anti-algae and flocculant. there is no direct handling with the chemical product. water maintenance is achieved in a safe manner. easy to use: turn the thread below and place it on the pool water. it does not harm filtration thanks to its optimized shape which leaves the water circuit intact. it rises to the surface once the chemical product has been used, warning the need to start a new treatment. from 0-10m³ it contains 250 g