Alien Deep Water Culture V-SYSTEM 20 Pot 4 Row KitV SYSTEM 20 Pot 4 Row Kit Introducing the revolutionary V SYSTEM, a cutting edge recirculating deep water culture hydroponic system that's unlike anything else on the market. Developed with years of industry expertise, this RDWC system utilizes innovative Venturi valve technology to oxygenate the nutrient solution without the need for an air pump, resulting in healthier root zones and impressive yields. Plus, say goodbye to clogged airstones the V