Feature: 1. The ceramic tubes allows carbon dioxide to be dissolved in the water and absorbed and utilized by the water plants supply. 2. With the safe nut lock system design, this carbon dioxide diffuser can effectively lock the CO2 tube. 3. The atomizer needs to be used with meters with a working pressure of 2kg/c㎡ or above. 4. Made of high quality material, which is non‑toxic, safe, energy‑saving and eco‑friendly. 5. This special equipment can help to increase the dissolved rate and save the usage of CO2. Specification: Condition: 100% Brand NewItem Type: Carbon Dioxide DiffuserMaterial: PlasticColor: As Picture ShownThis product is suitable for use in aquarium within 40‑120cm/15.7‑47.2in . Package List: 1 x Carbon Dioxide Diffuser Note: 1. Because the required working pressure is relatively large, please adjust the air volume from small to large and fine‑tune the switch from small to large. Be sure to pay attention to the slowness and the slowness. If you suddenly increase the pressure or increase the atmosphere, it is very likely The atomization will break.2. This product is suitable for use in aquarium within 40‑120cm/15.7‑47.2in.3. Do not use for children to play, so as not to cause injury and loss.4. The self‑made bio‑generating carbon dioxide equipment cannot reach the pressure required for the work of this product, so this product cannot be used.