skrskr Aquarium DIY CO2 Generator System Kit CO2 Generator System with Solenoid Valve Bubble Counter & Check Carbon Dioxide Reactor Kit for Plants Aquarium

Be made of aluminum alloy. It is strong, durable and efficient. Well-sealed caps and tubes, leak-proof, non-deformed, never loose. Professional pressure guage for pressure watching. Cheap, simple to create pure CO2 constantly by chemical reactions. Solenoid valve: To control the on and off of CO2 generator system using with a timer(not included). Bubble counter with check valve: Flow-rate of CO2 gas indication device and prevent water flow back into the bottle. Equipped with a safety valve, the pressure is greater than 4kg pressure will relief automatically, carbonated beverage bottle pressure is 8kg, safety is ensured. The safety valve supports manual pressure relief. When the pressure is below 4kg, it can be manually relieved by pull the ring of the safety valve. It is very safe.