Features:1. Low temperature type coil, long time using will not cause overheating.2. Nuts locking design for CO2 pipe connection, anti-shedding and good sealing.3. Can realize turn on and off automatically when used with a timer.4. Effective locking with CO2 pipe to prevent loosening from accident.5. Simple installation, low noise, durable and safe in use.6. Can help to keep your aquarium water plants healthy and not waste energy.Notice:1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow minor deviation due to manual measurement.2. Objects may have Logo, if you want to know, please contact us. Otherwise, please do not bid.Specification:Type: Solenoid ValvesMaterial: aluminum alloyWire length: 1.5m (2x0.5mm)Working pressure: 6kgHow to use: Power on, power off. By linking the product and the luminaire through a timer, it is more convenient and labor-saving to automatically switch the CO2 with the lampConnection method: Only need to install this solenoid valves in the middle position of the air outlet pipe (recommended between the trimmer valves and the refiner), and directly control the CO2 shut-off through the air pipe channel. For safe, it is recommended to select a high-strength air pipe, can also be equipped with high-quality air conditioning valvesScope of application: Almost all CO2 systems using tracheal ventilationincludes:1 x Solenoid Valves