The Hypro D30 is a medium pressure duplex diaphragm pump that is ideal for pumping and spraying herbicides, pesticides, liquid fertilizers and many other hard-to-handle liquids. The Hypro D30GRGI comes pre-coupled to a gearbox and regulator and the Hypro D30GRGI with 5.5 HP Honda Engine comes pre-coupled to a gearbox, regulator and 5.5 HP Honda engine. Also, the GS40GI Regulator, Gearbox Kit and Repair Kits are also available to purchase for your Hypro D30 Diaphragm Pump.