VIAIR 300P

I picked this one because it is built for larger truck and SUV tires, with 150 PSI and strong airflow, rather than a small car-only inflator. I also like that it runs off the vehicle's 12-volt power, so it is ready for road trips and off-road use. Before you buy, check your tire size and pressure needs, and confirm you have room to store it with its hose and cables.