VIAIR - 425C Gen. 2 Performance Dual Value PackVIAIRs brand new 425C Gen. 2 compressor delivers game changing performance, capable of putting out 4. 94 CFM at zero PSI head pressure. The 425C is our first compressor with duty cycle of 33% at 175 PSI and 50% at 100 PSI. The 425C features upgraded internal components that make it a true 175 PSI rated working pressure pump. The 425C Dual Performance Value Pack features two 12V 425C compressors with newly developed sleek head design, increased duty