This CO2 diffuser is designed to enhance the growth of aquatic plants in your aquarium. It efficiently dissolves CO2 into the water, ensuring optimal absorption by the plants. The sleek and durable design ensures performance, making it a reliable addition to your aquarium setup. Ideal for both beginners and experienced aquarists. Features -Color:Transparent -Material:Plastic -Size:37.50X13.50X13.50cm/14.74X5.31X5.31in -High efficiency diffusion: the co2 diffuser ensures rapid and even distribution of carbon dioxide throughout the aquarium, providing ample co2 supply for aquatic plants -Stable control: by adjusting the flow rate of the co2 diffuser, you can precisely control the co2 concentration in the aquarium, maintaining a stable environment -Advanced technology: utilizing advanced co2 diffusion technology, this diffuser minimizes co2 waste, ensuring maximum efficiency -Durable and reliable: made with plastic materials, the co2 diffuser is durable and safe to use, offering performance -Easy operation: the simple design of the co2 diffuser makes it easy to install and operate, suitable for all types of aquariums Package list: 2 x carbon dioxide diffusion barrel