6 X 4.5 INCH MOYNO SS PROGRESSIVE CAVITY PUMP Stock Number: P-2486 Moyno stainless steel progressive cavity pump Mfg. Robbins & Myers 2ED22GLSSC, DAA, AS8746291.2 6 x 4.5 inch in/out Sell with or without motor setup (1) available Posted in Pump, Displacement and Gear.