40mm Bubble Stone Aerator For Aquarium Fish Tank Pump Hydroponic Ox…

Description:100% brand new and high quality.Increase oxygen levels, lower CO2 and raise PH.It is an important instrument to successfully keep aquatic fish for respiration process.Durable, and sintered by high temperature.The high temperature sintering process make the air stone more stable and durable, can be used for a long time.Single air stone supply, need match with air pipe and oxygen pump for full usage.Need soaking in the water for about 15mins before use.Specifications:Material: Mineral Stone + PlasticColor: GraySize: 4cm Package Included:1 x Air StoneNotes:1. Due to the difference between different monitors, the pictures may not reflect the actual color of the item.2. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement.3. Please leaving a message before you give the bad feedback, if the products have some problems.Thanks for your understandings.