Viair 400P Automatic.

If you’ve got a Jeep or a truck on oversized tires, the Viair 400P Automatic is basically non-negotiable for fast air-ups. It pushes big air volume (2.3 CFM) and the pressure-switch setup stops pumping when you release the trigger, so you’re not constantly walking back to the unit.

Pros

+Very fast inflation speed for oversized tires
+High airflow (2.3 CFM)
+Automatic trigger-style operation stops pumping when you release the gun
+Built for abuse with sand-resistant switch gear and vibration dampening
+Durable carrying case included

Cons

-Heavy and bulky
-Overkill for standard sedans

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Viair 400P Automatic.

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Highlights

+Very fast inflation speed for oversized tires
+High airflow (2.3 CFM)
+Automatic trigger-style operation stops pumping when you release the gun

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