Aquarium Co2 Generator System New Upgraded Automatic Timing Motor Valve 1L with Pressure Gauge Bubble Counter for Aquarium Plants，Stable Output

I was skeptical about getting this due to mixed reviews about leaking at fitting and where regulator is I put Teflon tape on every thread and no leaks works great. Also there were some reviews about the controller not working or being difficult to set up I found that there were two things labels wrong making it difficult to program but once I went through the buttons I figured it out for automatic timer

Wouldn’t recommend. Purchased 2 of them both were rusty on the inside and one was missing the timer and power cord.

Excellent little system that is easy to put together and the electronic timer which is very easy to set up makes the whole process virtually painless. There is one MAJOR problem however with the instructions. When you convert from Fl. OZ into ml. the amount of each of the 3 contents that you put into the cylinder it is WAY off by a HUGE margin!!! The instructions basically tell you to put over 200 times the amount of the 2 dry ingredients and the water into the container which I seriously doubt the 1L unit can physically hold hold! The ratios SHOULD be 100ml each of the dry ingredients and 110ml of water. This is a serious, and potentially dangerous error on the part of the manufacturer. Fortunately i have 4 other 1L systems like this so I already knew the correct amounts to be used. Plant growth: Excellent Build quality: excellent Quality: Excellent Size: Excellent