EPDM Rubber Seat Washer for TeeJet 144 and 144A Diaphragm Check Valves

Description

When your sprayer’s check valves start letting chemicals drip back through the lines, it’s usually this little rubber gasket that’s given up. A worn seat washer means uneven pressure, chemical waste, and potentially dangerous back-flow into your tank. This EPDM rubber gasket creates the tight seal you need to keep chemicals flowing in the right direction.

What You’re Getting

• EPDM rubber construction that resists swelling and cracking from farm chemicals
• Precise fit for TeeJet 144 and 144A diaphragm check valve bodies
• Creates a tight seal that prevents chemical back-flow and pressure loss
• Direct replacement—no modifications needed, just swap the old one out

Built for Chemical Resistance

This gasket works in the heart of your sprayer’s check valve system, where it’s constantly exposed to herbicides, fungicides, and other harsh farm chemicals. The EPDM material holds up to these tough conditions without deteriorating like regular rubber would, keeping your sprayer working reliably season after season.

Made to Last

TeeJet builds their gaskets from materials that can handle the pressure changes and chemical exposure that come with agricultural spraying. This isn’t a generic rubber washer—it’s designed specifically for the demanding conditions your sprayer faces every day in the field.

Good to Know

When you’re rebuilding check valves, it’s smart to replace all the rubber components at once since they typically wear at about the same rate. Clean the valve body thoroughly before installing the new gasket to ensure a proper seal. A light coating of silicone grease on the gasket helps with installation and extends its life.