Hydra-Cell D10 Series seal-less pumps from Wanner Engineering have up to 1,500 psi discharge pressure, flow capacity of 4.26 gpm and motor speed of 790 rpm. Spring-loaded, horizontal disk check valves and seal-less design enable the pumps to handle viscous fluids and abrasive particulates up to 500 microns in size. 800/369-4172; www.hydra-cell.com.