Specializing in OEM pump applications. Diener Precision Pumps (DPP) combines state-of-the-art manufacturing techniques to produce superior products at competitive prices. Our range of quality products allows DPP to select......Specializing in OEM pump applications. Diener Precision Pumps (DPP) combines state-of-the-art manufacturing techniques to produce superior products at competitive prices. Our range of quality products allows DPP to select the correct pump type for your application this could be a Piston Pump, Magnetic Drive Gear Pump or a custom design - all solutions focus on delivering long life and reliable performance