Reciprocating Air-Cooled Air Compressors Splash Lubricated, Evolution Champion Evolution Compressors provide the advantages of a reciprocating compressor coupled with less noise and vibration. Loaded with rugged features, these compressors deliver high performance and tremendous value. As a result, Evolution compressors offer long, trouble-free service with maximum operating efficiency. Specifications and Features: 5, 7.5, 10 & 15 hp Pressure at 175 psig 16.8 - 46.6 acfm at 175 psig Noise level as low as 66 dBA Tank or Base Mounted Two Stage, Splash-Lubricated Prorated 5-Year Compressor Warranty Factory filled with ChampLub