TERRA AQUATICA (GHE) - HYDROCLONER SPINNER 72 220 VOLTSRainForest The perfect tool for beginners. A must for the professional. This is our most powerful hydroponic module. It is designed to maximise the amount of oxygen available to plant roots. Used by the biggest research laboratories in the US, like Argonne National Laboratory and Los Alamos National Laboratory it has demonstrated the most dramatic propagation rates of any hydroponic system yet tested. The RainForest is an essential propagating tool