New Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the

Y Connector 4"x4"x4 Made from strong galvanized steel construction, these Y connectors allow you to split ventilation into multiple areas with one fan. Using a Y-connector gives you double the possibilities—you can split a length of ducting into two se