SuperFlow 12V MaxVolume Air Compressor

Airing down for trails and needing to air back up for the highway is one of those jobs that separates a real trail-ready rig from one that just looks the part. The SuperFlow MV-90 is a 12-volt portable air compressor built specifically for that kind of work, with enough power to inflate a 37-inch tire in under two minutes.

The compressor runs a 2/3 horsepower motor that connects directly to your vehicle's battery, drawing up to 45 amps at peak. It pushes a maximum of 150 PSI and delivers 3.7 CFM of airflow, which is what gives it the speed to fill large tires quickly. The included 24-foot coil hose with a brass inflator reaches all four corners of your vehicle without repositioning the compressor, and the maximum continuous run time is 40 minutes at 40 PSI and 75 degrees Fahrenheit.

SuperFlow includes a carry bag with the MV-90, so it stows neatly in your truck bed or cargo area. The unit is sized and built for trucks, SUVs, and off-road vehicles with large tires, though it handles passenger car tires just as well, inflating them in about 16 seconds. Be aware of the 45-amp draw when connecting it, as a healthy battery is important for sustained use.