Making the world’s nurseries more efficient. Model ECO-501-HH Fertilizer Model For fast and accurate hand-held shot-by-shot application of dry granular fertilizer like Osmocote®, Polyon® and similar good quality materials. Model ECO-501-AI Potting Machine Model For mounting on Potting Machines Conveyor Belts or Moving Vehicles. The AI has all the same Engineering and Reliability as the Hand-Held model. Allows accurate and instant Dose adjustment during potting. Mounted vertically and comes with remote trigger - for shot activation by any circuit closure action. Is typically configured using infrared detection of container position. Model ECO-301-HH Herbicide Model For fast and accurate hand-held shot-by-shot application of Rout® and similar very fine-grained materials. Model ECO-301-AI Potting Machine Model For mounting on Potting Machines Conveyor Belts or Moving Vehicles. This is the Automated model for the 301 Herbicide applicator.