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281 Liberty Pumps are 1/2HP Automatic Submersible Sump/Effluent Pumps that have a wide-angle quick-disconnect float switch which are mercury-free and mechanically activated. This effluent sump pump operates at 208-230v at a max fluid temperature of 140F featuring a single phase permanent split capacitor.

This Liberty effluent sump pump was designed for STEP systems, mound systems, liquid waste transfer and residential or commercial high output sump applications that require higher head or more flow. This pump is ideal for pumping of drainage, effluent and waste water, and other non-corrosive or non-explosive liquids.

  • High Voltage 208/230v
  • Vortex style impeller permitting passage of solids up to 3/4"
  • Cast iron pump housing with protective epoxy coating for corrosion resistance
  • Oil-filled motor housing for lifetime lubrication and rapid heat dissipation
  • 1/2 HP shaded pole motor with thermal overload protection
  • Stainless steel screws, bolts and handle to protect against corrosion
  • Mechanical seal (stainless steel spring, nitrile parts, carbon and ceramic faces) to assure maximum protection against pump failure
  • Upper and lower sintered sleeve bearings for extended motor life
  • Automatic operation with piggyback mechanical float switch with 'ON' level at 13" and 'OFF' level at 7"
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    Cord Length:







    Horse Power:


    Flow at 5 FT Head:

    62.5 GPM

    Shutoff Head (ft.):



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