Aquarium CO₂Generator Kit, Smart Dual-Bottle System with Solenoid

Why it's a great deal

• Automatic CO₂ Generation Design: The dual‑bottle system produces CO₂ automatically by reacting citric acid (300g + 550ml water in Bottle A) with baking soda (400g + 150ml water in Bottle B). (For step‑by‑step instructions, please watch the installation video.) This smart system delivers a steady CO₂ supply to your plants – no messy stirring, no constant refilling, just effortless management.

• Precise Pressure Adjustment + Digital Control: Through the intuitive control panel, you can easily set the desired working pressure (0.5–3 kg/cm²). The initial pressure is preset to 2 kg/cm². (For detailed , please refer to the pressure setting video.) The built‑in screen displays the current pressure in real time, ensuring that the CO₂ output always meets your plants' needs. (Some noise may occur during operation – this is normal and will stop once the process is complete.) The micrometering valve allows you to fine‑tune the bubble flow for optimal results.

• Built‑in Multi‑Layer Safety Protection for Peace of Mind: The system is equipped with a safety relief valve that automatically releases pressure if it exceeds 4 kg/cm², preventing over‑pressurization. A check valve (install in the direction of the arrow) prevents backflow, and the solenoid valve allows you to connect a timer (not included) for automated on/off cycles. The dual‑bottle design keeps the two reactants separate until operation begins, and an audible alarm will sound when the materials are depleted, alerting you that a refill is needed.

• Important Note: Before installation, please watch the installation video carefully and ensure the micrometering valve is fully closed. After installation, set the desired pressure (refer to the pressure setting video for detailed instructions). During operation, the pressure may slightly deviate from the set value – this is normal and will stabilize once the process is complete.

• Complete All‑in‑One Kit – Ready to Install: The package includes everything you need: the main unit, two reaction bottles (A and B), a solenoid valve, a bubble counter, a power adapter, a CO₂ diffuser (soak in water for 24 hours before first use), a check valve, air tubing, suction cups, a silicone funnel, U‑shaped tubing, spare O‑rings, and a user manual. No extra purchases are required – simply unpack, assemble, and start bringing life to your aquarium.