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Semi Trash Pump, Honda GX120 3.5 HP (STH-50X)

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Professional contractors know that worksite water is often muddy, sandy and can wear down a clear-water pump. Koshin's STH-50X Semi-Trash Pump is designed to the highest quality for optimal durability under tough construction site conditions. Perfect for handling mud, sand, pebbles and debris in the water stream.

  • Silicon carbide mechanical seals for increased abrasive resistance, longer life, and less maintenance
  • Great for irrigation, construction, industrial and general water transfer
  • Impellers and volutes are constructed of spheroidal graphite ductile cast iron for increased durability and long life
  • Pump housings are made of die-cast aluminum for strength, weight reduction and portability
  • Rugged powder-coated roll cages
  • Honda engine with low oil shut off
  • 3-year limited warranty on pump ends


Suction, Discharge Size2" NPT
Maximum Output158 GPM
Maximum Discharge Head95 ft.
Maximum Suction Lift26 ft.
Maximum Pressure41.1 psi
Engine ModelHonda GX120
Engine Displacement118 cc
Engine Horse Power3.5 HP
Fuel Tank Capacity0.66 gal.
Full Load Run Time2.0 hours
Fuel TypeUnleaded Gasoline
Packaged Weight56 lbs.
Packaged Dimensions (LxWxH)18" x 14" x 15"

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