Unused 526gpm 316 Stainless Steel Horizontal Centrifugal Pump. Mfr. by Durco (Flowserve). Size 4x3-10RV9.63. Type MK3 STD. 526 gpm @ 358' head. MDP 275 psi @ 100 deg. F. 302 deg. F. Casing: 316SS. Impeller: 316SS. 100 HP motor. Serial #1400944CHP012B. Bleached Oil Filter Tank Pump.