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STEP Plus™ D-Series

Pumps: Effluent

step plus d-series efflient pump

This 4" submersible pump in 10, 20 and 30 GPM models dominates with superior "DRAW-DOWN" capability. Sold & proven in aerobic & filtered effluent service applications.

  • Patented Stage System - The proven SignaSealTM staging system utilizes a patented ceramic wear surface. When incorporated with Sta-Rite's "true" independent floating impellers it enables industry exclusive "dry-run" capacities.
  • Cooler and quieter operation - The ST.E.P Plus Dominates by using the pumped liquid to cool the motor as it passes over the motor.
  • Reduced amp draw - The ST.E.P. Plus Dominates in this class with less energy consumption - over 25% less amp draw.
  • Shaft bearing - Exclusive self-lubricating Nylatron┬« bearing resists wear surface from sand and abrasives.


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Pump Systems Incorporated (PSI) is a commercial water industry leader providing unique, innovative and quality water treatment products
for the water industry with training and education a key element.