WTRWY 3722021-1D EXECUTIVE 5HP 2SP 2"X2" 56FR SD. 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 high performance. Large 2 ½" intake for improved flow performance and reduced noise. Large 6 ½" diameter wet end for higher head pressure. Split capacitor, (start and run) for less energy consumption. Thermally protected to extend life expectancy of motor