ROYTRONIC EXCEL Series AD Pumps from LMI Pumps are positive displacement Liquifram chemical metering pumps with an NEMA 4X/IP-65 enclosure. They have flexible control options and electromagnetics to meet all flow/pressure ratings. FastPrime Liquid Ends are equipped with a valve that allows for opening the head to atmospheric pressure to assist in pump priming. Options include four function valves, AUTOPRIME Liquid Ends, high-viscosity liquid ends, a dual low-level float switch, Digi-Pulse flow monitor, repair and preventive maintenance kits, and calibration columns. They have an LCD user interface with backlit graphical display, an industrial-grade IP-68 external signal/equipment interface, and a theoretical flow rate display. It can be used from 0.001 up to 2 gph in applications up to 250 psi. They are UL, CUL, NSF 50, NSF 61, and CE listed. 800/564-1097; www.lmipumps.com.