Hydroponic systems come complete with everything needed to start growing - Flora Series? nutrients, clay pebbles, net cups, coco cup liners, pump (except 60 extension), support structure and manifold. Legendary growth and yield are the hallmarks of the AeroFlo? line. AeroFlo? super-oxygenates the nutrient solution to deliver oxygen, water and nutrient in ideal combinations, creating a root zone environment that surpasses anything found in nature. The results are larger yields, stronger more resistant plants. The AF18 and AF30 both use our WaterPower pump and 17 gal Hex Pot Reservoir. More nutrient, less nutrient maintenance. 4 foot chambers for the AF18 and 6 foot chambers for the AF30.