HF CO2 Regulator/Solenoid(1-20 cuft/ hour) w Timer DE Reflector thus making the 1-4-5 formula

thus making the 1-4-5 formula ideal for soil applications

while Part B features the precise NPK ratio your flowers need to thrive

ALSO CONTAINS NONPLANT FOOD INGREDIENT(S):

Grodan is unique by making different types of fibers

in a grow room emergency

HF CO2 Regulator/Solenoid(1-20 cuft/ hour) w Timer DE Reflector thus making the 1-4-5 formulaProduct Details Deliver growth boosting CO2 with our user friendly, easy to operate system. With its programmable timer, it will automatically maintain ideal CO2 levels for optimum growth. For small to medium size areas, select the COSYS; for larger than 10' x 10' areas, select the COSYS20. To use Hydrofarm's CO2 Flow Rate Calculator, click HERE