Enhance your aquatic environment with this high-quality DIY CO2 Generator System, crafted from durable aluminum alloy for long-lasting strength and efficiency. Designed to provide a steady and safe supply of pure carbon dioxide through simple chemical reactions, this system is ideal for promoting plant growth and improving fish metabolism in home aquariums. Its comprehensive design features advanced safety elements and precise control components to ensure optimal performance and user safety. Key Features: · Durable Aluminum Alloy Construction: Built with corrosion-resistant aluminum alloy, ensuring robustness, leak-proof operation, and resistance to deformation or loosening over time. · Professional Pressure Gauge: Accurately monitors internal pressure for safe and effective CO2 generation, allowing you to maintain ideal conditions effortlessly. · Reliable Safety Valve: Automatically releases excess pressure above 4kg to prevent over-pressurization, with manual pressure relief available via a convenient pull-ring mechanism for enhanced safety. · Efficient Chemical CO2 Production: Easily creates consistent and pure carbon dioxide by adding simple raw materials—citric acid, baking soda, and water—making it an economical and eco-friendly choice. · Solenoid Valve Control: Facilitates automated on/off control of the CO2 supply when used with an external timer (not included), providing precise regulation for your aquarium needs. · Bubble Counter with Check Valve: Allows clear visualization of CO2 flow rate while preventing water from backflowing into the system, safeguarding against contamination and damage. · Well-Sealed Caps and Pipes: Designed for secure, leak-proof connections that maintain system integrity even under pressure. Specifications: · Material: Aluminum Alloy · Color: Silver · Package Options: CO2 generator system / CO2 generator system + bubble counter with check valve / CO2 generator system + bubble counter with check valve + solenoid valve · Recommended Raw Material Ratios:   - Bottle A: Citric acid 200g + Water 600g   - Bottle B: Baking soda 200g + Water 200g Package Includes: · 1 x CO2 Generator System · 1 x Solenoid Valve · 1 x Bubble Counter with Check Valve · 1 x Pressure Gauge · 1 x Safety Valve · 1 x Fine Adjusting Valve · 1 x 1.5m Tube · 2 x Suction Cups · 1 x User Manual Additional Notes: - Requires two 1.5L or larger plastic beverage bottles (preferably soda bottles) for the chemical reaction setup; do not use glass or beer bottles to avoid risk of bursting under pressure. - For optimal operation, perform boost pressure by releasing gas and shaking bottles to accelerate reaction until pressure reaches approximately 1kg for stable CO2 generation. - Always ensure pressure has been fully released before opening bottles to avoid injury. This DIY CO2 Generator System offers an affordable, easy-to-use, and safe solution for aquarium enthusiasts seeking to maintain healthy aquatic plants and fish. Its combination of durable materials, precise control mechanisms, and safety features make it an indispensable addition to any aquatic setup.