The ST.E.P Plus D-Series 4" submersible pump series dominates with superior "DRAW-DOWN" capability. Great for effluent, cistern, aeration, and irrigation applications.  Stainless steel body construction (300 grade).  The motor is 1/2 HP, 115V, single phase, dry-wound, double ball-bearing, double-seal, with thermal overload protection.  4-1/2" pumping drawdown.  60Hz, 2-wire.  Float switch not included with ST.E.P models.  Exclusive self lubricating Nylatron bearing resists wear surface from sand and abrasives.  Precision molded Acetal impeller for perfect balance; ultra smooth for the highest performance and efficiency.  Allows for 0.08" solids.  Comes with 10' power cord.