The Etatron eOne MF Ultrasonic Micro-Doser Kit with Flow Sensor and pressure relief valve, can accurately inject super-concentrated products, and can be integrated into an existing fertigation system. This kit can work in combination with a Dosatron Water-Powered Nutrient Delivery System, or as a stand-alone solution, to provide the ultimate in reliability and functionality in one system.  Connections 3/4" NPT.