Description
When you’re spraying fields day after day, your pump’s got to handle everything from herbicides to liquid fertilizer without missing a beat. This Hypro 4101 series pump is built tough with a Ni-resist body that shrugs off chemical corrosion and keeps pumping season after season. At 7.2 GPM and 150 PSI, it’s sized right for smaller sprayers and direct engine drive setups.
Key Features
- Ni-resist body construction resists corrosion from agricultural chemicals better than cast iron
- Four super rollers provide smooth, consistent flow with less pulsation than fewer-roller designs
- Viton seals handle aggressive chemicals and temperature extremes without breaking down
- Direct drive capability up to 2600 RPM means you can run it straight off your gas engine
- 3/4-inch ports give you flexibility for different plumbing setups
Built for Real Farm Work
This pump is designed for agricultural and industrial spraying applications where you need reliable chemical handling. Whether you’re spot spraying weeds, applying pre-emergent, or running liquid fertilizer through your applicator, this pump delivers the consistent pressure you need for even coverage.
Made to Last
The Ni-resist body is what sets this pump apart from standard cast iron models. It stands up better to the harsh chemicals you’re pumping and won’t pit or corrode like cheaper materials. Combined with Viton seals that stay flexible in all weather, this pump keeps working when others would be heading to the shop.
Installation Notes
The 5/8-inch solid shaft fits most small engine setups with a simple coupling. Since it’s designed for direct drive, you’ll get the best performance running it at moderate speeds rather than trying to spin it too fast. A quick tip: prime the pump before starting your engine to prevent dry running on startup.



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