Description
When your trusty Solo backpack sprayer starts losing pressure or the pump isn’t working like it should, chances are it’s time to replace that little Viton collar inside the pump assembly. It might be a small part, but this collar does big work—keeping the pump sealed tight so you get consistent pressure every time you pull that handle.
What You’re Getting
- Chemical-resistant Viton material that stands up to herbicides, pesticides, and fertilizers
- Precise fit for Solo 425 and 475 piston pump assemblies
- Maintains proper seal between pump components for reliable pressure
- Factory replacement part that restores your sprayer’s original performance
Built for Real Farm Work
This collar fits right into the pump assembly of your Solo 425 or 475 backpack sprayer—the workhorses that handle everything from spot-spraying fence rows to treating pastures and food plots. These sprayers use chemically resistant Viton seals throughout because they know you’re putting them to work with serious farm chemicals that would eat up regular rubber seals.
Made to Last
Viton isn’t your everyday rubber—it’s the tough stuff that chemical plants and refineries use when regular seals just won’t cut it. This material handles temperature swings, chemical exposure, and the constant flexing that comes with pump operation without cracking or swelling like cheaper seals do.
Good to Know
This collar is part of your pump’s internal seal system, so you’ll need to disassemble the pump to replace it. If you’re not comfortable tearing into the pump yourself, your local small engine shop can handle the job. It’s a good time to inspect the other pump components and maybe grab a pump rebuild kit if things are looking worn.
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