Buffalo "Can-O-Matic II" Ammonia Pump. Model: HCR. S/N: 84440965. Size: 3 in. x 1-1/2 in. Flow rate for new pump is 100 gpm with required horsepower and 72 tdh. Discuss with salesperson your process and product to determine if this refurbished pump should handle your specific duty. Impeller: 9-1/8 in. Buffalo Motor, 5 Hp. 1750 rpm, 460 V, 9.6 amps, 60 Hz, 3 phase. Buffalo HCR-series pumps are single suction, single stage, hermetic centrifugal pumps designed for Zero Mfg. Co leakage by elimination of the pump stuffing box. Inlets: (1) 3 in. dia. flanged inlet. Outlets: (1) 1-1/2 in. dia. flanged outlet. Overall dimensions: 20 in. L x 18 in. W x 21 in. H.(108a-78).