Designed and built for tough work, you won't get a better gun for primer work than the RE4001G. Suitable for solvent based paints only and available in a 1.3 and 1.8mm setups. Can be used with 3M disposable pot system use adaptor number 2 (3M code 16032). Working pressure 50PSI, with a max pressure of 80PSI Depending on the set up, between 7-12CFM