Parker AA-035GNFI Oil-X Evolution Compressed Air Filter, Removes Oil, Water and Particulate, Float Drain, Incident Monitor, 0.01 Micron, 339 cfm, 1 1/2" NPT Parker AA series Oil-X Evolution compressed air filter with incident monitor helps remove water and oil aerosols, solid particulates, and micro-organisms from a compressed air system Filter housing is constructed of Alocrom-treated aluminum to resist corrosion and tarnishing Float drain is energy efficient and removes coalesced liquids with no air loss Operating temperatures range from 35 to 176 degrees F Working pressure of up to 232 psi