The Series 'EO 1-1/4' Pump benefits from proven design features gained through over 30 years of experience in developing chemically resistant vertical pumps. The unique design of this pump includes a fully sleeved SS shaft threaded into a chemical duty motor. This eliminates weak shaft connections, pump bearings, spindles, bushing and liners, resulting in a chemical duty pump which can run dry indefinitely, providing years of trouble-free service. Standard models include a heavy duty machined mounting plate with PTFE vapor seal and column labyrinth seal to protect the motor. The compound impeller prevents liquid from rising in the column, even at maximum TDH, while the smi-enclosed bottom impeller provides efficient flow performance at low horsepower.