There are a few different types of 12 volt compressors on the market, so it really depends on what your specific needs are. If you're looking for a compact and lightweight option, the Viair 85P is a great choice. This compressor can inflate tires up to 33 inches, making it perfect for off-road vehicles. If you need something with a little more power, the ARB CKMTA12 is a good option. This compressor has a 100% duty cycle and can inflate tires up to 35 inches. It's also air locker compatible, so it's perfect for those who need to air down their tires when going off-road.