Waterway Executive Pump 4.5HP 2 Speed | 3421821-1AThe Waterway Executive Pump 3421821 1A is engineered for heavy flow spa applications, delivering strong performance through a 4. 5 HP two speed motor designed on a dependable 48 frame platform. Matching original Waterway performance standards, the pump operates on 230 V power and uses 2 inch male buttress threaded intake and discharge ports to support excellent water movement. Its 6 inch diameter wet end generates increased head pressure and can be