Perfect for all your DEF fluid needs, the DEF Jug stands out with bold double-sided "DEF" lettering so it never gets mixed up with your other containers. It includes a DEF Adapter, sized to fit smaller DEF inlets for a secure, spill-free pour. A pre-installed external vent keeps liquid flowing fast and steady, while the light blue cap mat
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20 ratings
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No more boxes. Take to the fuel station and fill it up.
Pours easily and no spills. Make sure you open the vent.
Auto stop does not work on this but you can hear it as it approaches full and stop.
B
Bob · September 23, 2026
I was really hoping it would still be able to vent through the cap because I like that design... but it's just an adapter and then you guys added a separate vent which is just gonna break off or leak. I was hoping the end of the nozzle would've just been smaller and still used the vent through the cap technology.
