2001 Waukesha Positive Displacement Pump. Model: 18. Flow rate for new pump is 17 gpm with required horsepower and pressure. Discuss with salesperson your process and product to determine if this refurbished pump should handle your specific duty. Seal options: field interchangeable single and double “O” ring and mechanical seals. 316 stainless steel product contact surfaces. This pump is 3A and BISCC approved. Inlets/outlets: (2) 1-1/2 in. dia. threaded fittings. Overall dimensions: 1 ft. 1/2 in. L x 8 in. W x 8 in. H. (ACN54a).