Advantage Improve the growth and health of your plants with sufficient CO2 supply. Can significantly improve solubility of CO2, high diffusion efficiency. CO2 bubble counter is built in this device. Easy to install and use, with no extra power required. Made of high-quality glass, acid and alkali resistant, not etched, high transparency. 2.5 cm diameter, designed for tanks between 50 to 300 liters. The best way is to install it on the bottom of the tank. The CO2 diffuser can be placed vertically or horizontally. Specification: Material: Glass colour: Clear Size: 9.5 cm*2.5 cm What you get: 1* CO2 Diffuser 1* Fixed Suction Cup.
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