Description

When your backpack sprayer starts losing pressure or you notice a slow drip coming from the pump area, a worn O-ring is usually the culprit. This little rubber seal might be small, but it’s doing a big job keeping your sprayer working like it should. When it starts to crack or harden up from chemicals and weather, you’ll lose the seal that keeps everything pressurized.

What You’re Getting

Exact-fit O-ring that restores proper sealing in your pump system
Chemical-resistant rubber construction that stands up to herbicides and pesticides
Direct replacement that fits right where the old one came out
Affordable fix that can save you from buying a whole new sprayer

Built for Real Farm Work

This O-ring is designed specifically for Solo’s 425 and 475 backpack sprayers – the workhorses that handle everything from spot-spraying fence rows to treating pastures for weeds. These are the sprayers you reach for when you need reliable pressure and good capacity for bigger jobs around the farm.

Made to Last

The rubber compound in this O-ring is formulated to handle the chemicals you’re putting through your sprayer. It stays flexible even after exposure to herbicides, stays put under pressure, and won’t crack when temperatures swing from hot summer days to cool mornings.

Good to Know

Before you install the new O-ring, clean out any old chemical residue from the groove where it sits. A little silicone grease on the new O-ring makes installation easier and helps it seal better. While you’ve got the pump apart, it’s a good time to check other seals and give everything a good cleaning.