Parker AO-030FNFX Oil-X Evolution Compressed Air Filter, Removes Oil, Water and Particulate, Float Drain, 1 Micron, 233 cfm, 1 1/2" NPT Parker AO series Oil-X Evolution compressed air filter 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