Well suitable for DIY Co2 system and low cost planted tank use.

Getting Basic, Easy set up, Simply, Nano, Cool, Low Price, Good Looking!

Package included:

2x caps,

1x needle valve

1x Pressure gauge

1x small glass co2 diffuser

CO2 tubing

What you need to prepare this system??

2x 2 Litre of Coka Cola plastic bottle

1x 200g of Citric acid or 200ml of vinegar

1x 200g of baking soda

Note: 

1: The bottle must be carbonated beverage bottle, do not use the bottles which supply green tea, mineral water.etc

2: Trimming valve regulation avoid by sudden big or small, can’t suddenly turn up, after immediately shut down again, so as not to cause abnormal pressure to the bottle.