PORTER-CABLE PC3PAK Finish Nailer/Brad Nailer/Stapler Compressor Combo Kit Innovative shroud allows for better protection and portability 150 psi max allows users to drive more nails than a traditional 135 max psi compressor 6 gal tank allows users to drive a large quantity of nails on a single tank charge 2.6 SCFM 90 psi allows for quick compressor recovery time 2.6 SCFM 90 psi allows for quick compressor recovery time, per ISO1217; 34 lbs weight allows compressor to be easily carried