Motor Guard M-30 1/4 NPT Submicronic Compressed Air Filter Pipe Size is 1/4 NPT, Nominal Airflow is 45 CFM, Filtration Rating is .01 Micron and the Maximum Pressure is 125 PSI Temperature Range is 32-175 F, Replacement Element is M-7231/4 and the has NPT connections on bottom Made in USA The ultimate defense against damaging dirty air by removing particulates, condensed moisture and oil aerosols down to .01 microns in size Unit will mount in spray booths, on plasma cutters or on other equipment requiring ultra-clean air and a flexible connection