Get current pricing for Shertech, 1 x 3/4 x 4 Shertech, 1 X 3/4 X 4 Inch Centrifugal Pump. Us Motors 1/2 Hp, 115-208/230 V, 1 Ph, 60 Hz Motor. Pump Material Is Cast Iron. Pumps Are Unused Surplus . Product Category: Process Equipment, Sub Category: Water Treatment - Misc.: