Description
Whether you’re setting up a new spray tank, need to cap off an unused port, or temporarily block a fitting while you work on your plumbing, you need a plug that seals tight and won’t crack when you need it. This Banjo polypropylene plug threads right into any 1/2 inch MNPT fitting and gives you a secure seal that handles agricultural chemicals, fertilizers, and the temperature swings that come with farm work.
What You’re Getting
- Durable polypropylene construction that won’t corrode or react with farm chemicals
- Standard 1/2 inch MNPT threads for perfect fit in tanks, valves, and fittings
- Chemical-resistant material handles fertilizers, herbicides, and cleaning solutions
- Easy hand-tightening with wrench flats for secure installation
- Temperature stable design won’t crack in cold weather or soften in summer heat
Built for Real Farm Work
This plug is perfect for spray tanks, fertilizer tanks, water systems, and any agricultural plumbing where you need to cap off a 1/2 inch threaded port. Whether you’re winterizing equipment, doing maintenance work, or just need to block an unused fitting, it provides the reliable seal you need for tanks and systems that handle everything from plain water to concentrated chemicals.
Made to Last
Polypropylene is the go-to material for agricultural applications because it stands up to just about everything you’ll throw at it on the farm. This plug won’t rust, corrode, or break down from exposure to fertilizers, pesticides, or cleaning chemicals. The material stays flexible in freezing weather and won’t get brittle or crack like cheaper plastic plugs.
Installation Notes
Simply thread the plug into your 1/2 inch MNPT fitting by hand, then snug it up with a wrench using the flats on the plug body. Don’t overtighten—the threads and seal do the work. If you’re using it temporarily, a light coat of pipe dope makes removal easier later.






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