The Proactive Low Flow Power Booster 2 Controller with LCD is engineered specifically for the Stainless Steel Monsoon. With the Low Flow Power Booster 2 Controller with LCD the user can precisely control the water discharge with the turn of a knob. The Low Flow with Power Booster 2 Controller with LCD is used to monitor and regulate low flow sampling as low as 40ml/min. Simply connect the booster to a 12 volt battery and connect the pump to the booster and stand back for awesome pumping power! Check out all the great features of the Low Flow with Power Booster 2 LCD controller