This new 24mm Aquarium CO2 Atomizer is designed to dissolve carbon dioxide into fine bubbles for planted tank use. It helps promote healthy aquatic plant growth in freshwater aquariums. The reactor includes a suction cup for straightforward installation on tank walls. It is a suitable component for hobbyists setting up or maintaining a CO2 injection system for their aquascape. As a new item, it arrives in unused condition. The listing notes free shipping for this product. Please check the listing for full details on exact materials, compatible tubing sizes, and specific installation instructions. 24mm Aquarium CO2 Atomizer Fish Tank Control Water Atomizer Reactor With Sucker. Condition: New. Listed at 11.17 USD. 1 Sucker. 1 Co2 Diffuser Aquarium(Co2 tablets do not include). Excellent CO2 dissolve rate. Type: Co2 Dioxide Refiner. Co2 tablets do not include. Provide elegant look for your fish tank. Health & Beauty.