Waukesha Positive Displacement Pump. Model: 55. S/N: DO54994SS. Flow rate for a new pump is 90 gpm with required horsepower and pressure. Discuss with your salesperson your process and product to determine if this pump should handle your specific duty. Features include easy cleaning and disassembly, flexible mounting, non-galling Waukesha “88” alloy rotors. 2 in. threaded inlet and outlet. Pump is in good condition. Overall dimensions: 15 in. L x 11 in. W x 14 in. H. (ACN92)