Product DescriptionPackage Content: 1pcs Aquarium CO2 Diffuser1. QUALITY: Aluminum alloy CO2 aquarium atomizer, nickel-plated after oxidation treatment, acid and alkali corrosion resistance, durable.2. FUNCTION The diffusion plate breaks down the CO2 into tiny streams of bubbles, dissolving it in water, then thus allows plants to absorb the CO2 for photosynthesis.3. HIGHLY SEADLED: Be sure to tighten the top threaded port, press tighetly on suction cup so that it fits tightly to the surface of the side wall of the aquarium, to achieve the best atomizing effect.4. PERFORMANCE: The high density aquarium atomizer produces small bubbles (diameter less than 0.1mm), which increases the dissolution rate of carbon dioxide, which is not easy to block the 'aquarium.5. EASY TO CLEAN: Open the upper diffuser cup cover to replace it. It is recommended to clean once a week to avoid bacterial growth.Installed directly under the aquarium. Also suitable for low voltage systems or processor controlled systems and 20-40L aquarium.