The company retained the rotary-screw air end of its 185-cfm compressor, but redesigned the rest of the package for the Air-Source and AirSource Plus. The 1,850-pound AirSource delivers 160 cfm at 100 psi. It will run a 90-pound hammer and a less demanding air tool. AirSource Plus pushes 185 cfm at 100 psi. At 67 inches wide and 59 inches high, AirSource Plus is about 20 percent smaller than its predecessor, yet tool-carrying space is increased. AirSource Plus lists for $16,900, and AirSource lists at about $500 less.