Feature:1. Be made of aluminum alloy. It is strong, durable and efficient. Well-sealed caps, leak-proof, non-deformed, never loose. Install this CO2 pressure regulator need a wrench. Place the washer ensure a tight seal. Replace washers regularly.2. Professional pressure gauge for pressure watching. High pressure gauge shows cylinder pressure, low pressure gauge shows output pressure.3. Large double pressure gauge: Safe and with long service life, regulated output, stable operation. Pressure reducing valve: High pressure input, output pressure can be adjusted between 0-6kg.4. Solenoid valve: To control the on and off of CO2 generator system using with a timer(not included). 100-240V wide voltage input, DC 12V output, the solenoid valve is 12V noiseless version.5. Bubble counter with check valve: Flow-rate of CO2 gas indication device and prevent water flow back into the bottle. Precision fine-tuning, achieving 2-3 seconds 1 bubble.6. Any problem, please contact our store without hesitation. Honor to serve you!Specification:This CO2 regulator is specifically designed for the CO2 generator system. Install this CO2 pressure regulator that needs a wrench. Place the washer ensure a tight seal. Replace washers regularly recommended. It is easy, safe, and economical.Features:Be made of aluminum alloy. It is strong, durable, and efficient. Well-sealed caps, leak-proof, non-deformed, never loose. Install this CO2 pressure regulator that needs a wrench. Place the washer ensure a tight seal. Replace washers regularly.Professional pressure gauge for pressure watch. The high-pressure gauge shows cylinder pressure, low pressure gauge shows output pressure.Large double pressure gauge: Safe and with long service life, regulated output, stable operation. Pressure reducing valve: High-pressure input, output pressure can be adjusted between 0-6kg.Solenoid valve: To control the on and off of the CO2 generator system using a timer(not included). 100-240V wide voltage input, DC 12V output, the solenoid valve is 12V noiseless version.Bubble counter with a check valve: Flow-rate of CO2 gas indication device and prevent water flow back into the bottle. Precision fine-tuning, achieving 2-3 seconds 1 bubble.Any problem, please contact our store without hesitation. Honor to serve you!Specification:Name: Aquarium CO2 regulatorMain material: Aluminum alloyColor: SilverOptional interface type: CGA320(US); W21.8(EU)Input voltage: 100-240VOutput voltage: 12VSize: Total height 130mm; Double watch diameter: 40mmPackage Information:Package size: 16.5*13.5*11cmPackage weight: 600gGift Box PackagingPackage List:1* Aquarium CO2 regulator1* Wrench1* Instruction manual1* Other partsPackage List:1* Aquarium CO2 regulator1* Wrench1* Instruction manual1* Other parts