DONGKER Aquarium CO2 Solenoid Valve, DC 12V System Regulator Magnetic Valve for Fish Tank Water Plant Grass Grow

【 Material】The Use of High-quality Sealing Ring ,the Main Aluminum Alloy Material Surface is Hardly Oxidized, and the Corrosion Resistance 【Easy to Install】Compact Safe and Waterproof Easy to Use Can Be Used for Trachea with Inner Diameter of 4mm and Outer Diameter of 6mm 【12V】Integrated Solenoid Valve Coil Waterproof 12V Safe Low Pressure, Low Temperature, Energy Saving and Stability 【Input Voltage】: external co2 solenoid valve is 12v,which isenergy saving 【Application】: dioxide solenoid valve is suitable for tank plant, aquarium, plant growth.