Waterway Executive 56 4HP 56 FR Dual-Speed Spa Pump 3721621-1D, 2" Intake, 2" Discharge, 230V - spa pump has increased efficiency with its 2-Speed design.

Executive 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
Larger 2" intake for improved flow performance and reduced noise
Large 6-1/2" diameter wet end for higher head pressure
Split capacitor, (start and run) for less energy consumption
Thermally protected to extend life expectancy of motor
Highly versatile wet end can be rotated 90 degrees either way
Viton seals
Dimensions (H x W x L): 9.08" x 8.05" x 10.375"

Waterway - Executive 56 3721621-1D 4HP 56 FR Dual-Speed Spa Pump 230V