"PORTABLE,BASE DIM.,14.000 IN. LG,10.000 IN. W,11.000 IN. O/A H,5.000 IN. DIA GAUGE GRADUATED DIRECTLY IN A. F. S. PERMEABILITY UNITS,THREE COLOR CODED SCALES PROVIDED,ONE FOR LARGE ORIFICE,ONE FOR SMALL ORIFICE AND ONE FOR PRESSURE,OPERATING POWER,115V,60 HZ,SINGLE PHASE"