Description
When you’re plumbing a sprayer or liquid transfer system, you need clean, leak-proof connections at every joint. This 1-inch union end cap is one of those small but essential parts that lets you seal off manifold branches or provide serviceable connections in your system. It’s one of those simple parts that saves you headaches and keeps your operation running smooth.
What You’re Getting
- Durable polypropylene construction that won’t corrode from agricultural chemicals
- Standard 1-inch NPT threads for easy installation on manifolds and fittings
- Union design allows for quick disconnection when you need to service lines
- Smooth interior finish that won’t collect debris or restrict flow
- Chemical-resistant design built for fertilizer and pesticide applications
Built for Real Farm Work
This cap works perfectly in sprayer manifolds, liquid transfer systems where you need clean flow to your pumps, sprayers, or irrigation equipment. Whether you’re moving liquid fertilizer from a nurse tank, transferring chemicals for spraying, or pumping water for livestock, this cap provides reliable sealing for unused ports or temporary connections.
Made to Last
The poly construction handles agricultural chemicals that would eat up metal strainers and fittings. It resists corrosion from fertilizers and pesticides while standing up to the temperature swings and UV exposure that come with outdoor farm use.
Good to Know
Thread this cap on hand-tight plus a quarter turn with a wrench—don’t overtighten and risk cracking the threads. When using in chemical applications, check your chemical compatibility chart to make sure polypropylene is suitable for your specific products. Keep a few spare caps around for system modifications or emergency repairs.


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