The standard compressor option that comes with Bag Riders full kits and management packs. Although the 400C is louder than other compressors like the 380C and the 444C, it's quicker and puts out 2.54 CFM at 0 PSI with a 33% duty cycle at 100 PSI. When it comes to 150 PSI applications, the Viair 400C is the best bang for your buck.