Active Air CO2 Tanks Choose Your CO2 Tank Size:20 lb. Tank 4 Gallon/ 20

4 Gallon/ 20

Cobalt (Co)

Amino Acids - the true building blocks of all proteins - are also required by plants throughout all stages of growth and are helpful when plants are under stress

This 2-Site expansion kit from Current Culture allows you to expand your Under Current XL13 system by 2-sites

Active Air CO2 Tanks Choose Your CO2 Tank Size:20 lb. Tank 4 Gallon/ 20Get the best CO2 tanks available. In our tanks, the CO2 cylinder is produced from high strength aluminum alloy. The aluminum tank is roughly half the weight of standard steel tanks while still producing reliable results and ensures against rust. This heavy duty aluminum carbon dioxide tank is designed to hold CO2 and is great for use with a regulator, valve, CO2 controller or timer. With a plastic collar to prevent damage during shipping and use. All