Hey guys, I just heard of the press release of Viair's 497C.
Here's what I find out:

VIAIR Corporation is pleased to announce the arrival of their newest compressor to add to more than 50 models of VIAIR compressors currently used in applications worldwide. The new VIAIR 497C (P/N 49740) is a 100% duty compressor (at 150 PSI & 72 degrees Fahrenheit) and puts out 2.37 CFM at 0 PSI. The 497C draws a maximum of 35 amps of power. This means that the 497C will pressurize a 5 gallon air tank from 0 to 150 PSI in just over four minutes and will easily refill the tank using a 110 PSI-on and 150-PSI off pressure switch in one minute, 6 seconds. All “C” model VIAIR compressors are expressly meant for use with air tanks. The 497C features a heavy duty, PTFE lined, stainless steel braided leader hose, with a separate heavy duty check valve.