Made of high quality materials, durable and reliable. With anti-backflow function to prevent backflow when pressure changes, which can protect the table from aquatic plants and the CO2 cylinder from damage. < /li> It can count carbon dioxide volume and provide enough carbon dioxide to plants. Easy to install and operate, a good choice to make your aquarium different.< /li> Double head and single head are available, you can choose according to your needs. Installation method: Single Head Bubble Counter: Remove the sealing ring and install it at the intersection of the trachea, then tighten the bubble counter.< /p> Add 4/5 of water into the bubble counter, then tighten the top cover. Cap the CO2 tube then tighten the trachea fixing nut. Double head bubble counter: Add 4/ 5 Add water to the bubble counter, then tighten the top cover. Cap the CO2 tube, then tighten the trachea fixing nut. Features: Condition: 100% Brand New < p>Item Type: Bubble Counter Material: 0026 Aluminum Alloy &
