GAS - ENVIRO4 Fan Controller 2.4m x 2.4m For larger crops use 4ml

For larger crops use 4ml of formula per 1L of water

and trace elements

the fan has a two speed motor enabling for you to choose which speed suits your grow room best

you're employing nature's own solution to combat aphid infestations

irrigation

GAS - ENVIRO4 Fan Controller 2.4m x 2.4m For larger crops use 4mlOverview Introducing the Enviro4 Controller by Global Air Supplies, the ultimate solution for optimising your grow environment. With complete control over your growing conditions, this advanced controller simplifies your set up and allows you to maintain a perfect environment from a single point. The Enviro4 controls EC fan speeds and provides regulation for various equipment in your grow room through its four programmable sockets, revolutionizing the