The Double Disc Pump by Penn Valley Pump provides a low life cycle cost. Its design eliminates the friction wear associated with progressive cavity and rotary lobe pump styles. The pump can run dry without damage and incorporates a one-of-a-kind sealing trunnion that requires no maintenance, no seal water, no packing, no lubrication and does not leak. A free “Swap Your Pump” trial program provides the opportunity to try the pump in an application risk free. 800/311-3311; www.pennvalleypump.com; Booth 4431