Waterway Plastics 3722021-1V Pump,WW Viper,5.0hp,230v,2-Spd,56fr,2-1/2" x 2-1/2",OEMThe Viper has a dual speed motor with four sets of insulated windings for increased efficiency, and a 2-1/2 intake and discharge Spa Pump Features: Viper wet end designed specifically for 56-frame motors Two double shielded ball bearings with moisture resistant grease for quieter operation and longer life Two speed motors have four sets of insulated windings for increased efficiency 56-frame motor for added strength, cooler operating temperature, and longer motor life Large 2-1/2" intake for improved flow performance and reduced noise Large 8" diameter wet end for increased volume capacity Split capacitor, (start and run) for less energy consumption Thermally protected to extend life expectancy of motor Highly versatile wet end can be rotated every 90 degrees Dimensions (H x W x L): 9.08" x 8.05" x 15.72" California Title 20 Compliant