CO2 Bubble Counter Portable ABS Plastic CO2 Diffuser with Suction Cup for Aquarium Fish Tank

Feature: 1. Made of high?quality ABS material. It is strong, durable and has a long service life. 2. With a powerful suction cup, it can be adsorbed on the cylinder wall or hung on the side of the cylinder. 3. The device is located in a position where the CO2 cylinder can be easily observed, and can be used as a reference for adjusting the amount of CO2. 4. It has elegant and beautiful appearance and can be used with carbon dioxide system to produce enough CO2. 5. Helps estimate the amount of carbon dioxide released into your aquarium, fits all kinds of aquariums. Specification: Item Type: CO2 Bubble Counter Material: ABS Plastic Size: Approx. 7x4cm / 2.8x1.6in Suction Cup Diameter: Approx. 2.5cm / 0.98in. Package List: 1 x Bubble Counter1 x Suction Cup Note: Before using, pour 2/3 of the water into the counter to observe the gas flowing.