PneumaticPlus SAF Series Particulate Filters offer a cost effective solution in removing particulates and moisture from your airline. SAF Series Filters use a 10 Micron Element as the standard element, and offer 2, 5, 20 and 40 Micron Elements as available options. Bowl options (Metal or Polycarbonate) as well as drain options (Auto or Manual) are available. Its modular design allows SAF Series Filters to be connected to SAR Series Regulator and/or SAL Series Lubricator to complete a full Filter Regulator Lubricator (FRL) air preparation unit. Please visit our Amazon Store for our complete line of air products. DO NOT INSTALL A POLYCARBONATE BOWL IN PRESSURES THAT EXCEED 150 PSI OR WHERE THERE IS A PRESENCE OF SOLVENTS HARMFUL TO POLYCARBONATE.