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Centrifugal STEP Systems

Centrifugal STEP Systems

Environmental Products

Includes the pump, controls, and accessories necessary for a convenient and complete STEP installation

Zoeller Pump’s Centrifugal STEP (Septic Tank Effluent Pump) System is designed for use in a septic tank as an alternative to a separate pump tank. With a centrifugal effluent pump, float system, and effluent filter pack set in a polyethylene vault, it is ideal for use on new construction or repair sites when gravity flow is not an option. The centrifugal STEP system’s filter pack consists of 528 linear feet of 1/16″ filtration. The large surface area of the filter pack ensures adequate filtration for protection of downstream equipment and provides longer intervals between necessary servicing. The system is useful in low pressure pipe applications and can be equipped with a control panel for use in either demand dose or timed dose applications. Choose from several 115V centrifugal effluent pump models; 51, 53, 98, 142, 145, 151, 152 and 153. The system comes in a simplex configuration only. Various heights are available.

  • 1-1/4 ” SCH 40 PVC discharge assemblies (check valve available)
  • Flow rate up to 50 GPM
  • Alarm box or control panel packages available
  • Prewired conduit and J-Box assemblies available
  • 1 year limited warranty


All Zoeller Pump products must be installed and maintained in accordance with all applicable codes.

Note: All on/off alarm settings must comply with all state and local codes.

Note: It is the responsibility of the installer & designer to assure all state and local codes are met.

528 linear feet of 1/16″ filtration, 396 square inches of open area. Polyethylene vault, polypropylene filter pack. All components are engineered to withstand septic tank environment.


Discharge Size 1-1/2″