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Pumps & Pipework
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3” Diaphram pump (PUM-04)



These Gasoline Engine Diaphragm Pumps feature quiet and reliable Honda 4 HP overhead valve engines, with low oil sensors. These Koshin Diaphragm Pumps are made of light weight cast aluminum, and have straight line flow design which is self cleaning and helps eliminate clogging. Both models come with standard wheel kits which provide portability. These Diaphragm Pumps are built to run dry without damage and are perfect for areas of slow seepage.




  • Quiet and reliable Honda engine with low oil sensor
  • Pump housings made of lightweight cast aluminum
  • Wheels for portability
  • Oil-filled gear reduction




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