S/N: 0510-7824, MFG DATE: JUNE 2010, MODEL: MK3 STD, END-SUCTION PUMP. 400GPM, 200' TOTAL HEAD, 3550RPM. 4"Ø ANSI 150 FF SUCTION, 3"Ø ANSI 150 FF DISCHARGE, 316 STAINLESS STEEL CASING, IMPELLER, AND SHAFT. BARE PUMP, NO MOTOR OR STAINLESS STEEL CASING.