General de-watering or water transfer pumps for clear water applications.  Ideal for construction dust abatement spraying and potable water transfer.

Pumps especially designed for use in muddy or sandy water conditions that could damage centrifugal pumps.  Semi-Trash pumps are ideal for most rugged construction projects.

The world’s toughest pump especially designed for pro-contractors and construction equipment rental, Koshin Trash Pumps are designed to pump water with pebbles, small gravel, and other debris found on construction sites.  Koshin Trash Punps are extemely durable and easy to maintain making them a favorite of the construction equipment rental industry.  Many rental customers keep Koshin Trash Pumps in operation for decades.

Koshin Diaphragm pumps are mudsuckers, capable of running dry.  High Quality and durable, Koshin Diaphragm pumps are the best  for draining soggy clay, mud, and slurry left after the trash pump is done.

For over 70 years Koshin has continued to invest in new product testing and development. Koshin totally redesigned its production facilities in 2013 adding in house aluminum die casting, production automation, and state of the art process flow management. With a core philosophy of customer satisfaction, Koshin insures that each product off of its production line is of the finest quality. This is why we can proudly say that the performance specification found in this catalog are guaranteed minimum. This is often not the case with our competitors, who inflate actual performance values.

To further insure our valued customers that Koshin stands by our produces, we offer a 3 year limited warranty (on most pumps, not all) against manufactured defects. Our pumps are used and loved in 160 all over the world.

Koshin… the world’s toughest pump.