Twin 1/4" Air Compressor oiler W/ Regulator Gauge Water Trap 3 IN 1 AIR CONTROL PREP UNIT 1/4" Air Inlet: 1/4" Oiler Lubricator, Oil & Water Separator Unit Temperature Range: 5-60 degrees C (40-140F) Regulator With 140psi Gauge, Max. Pressure of 140psi