Air gages contaminated with oil can cause erratic and inaccurate measurements. AIR Inc. completely cleans out all the oil by disassembling the unit and then ultrasonically clean all the jets as well as flush the oily contaminates from the air lines, replace seals and filters, assemble, adjust and calibrate utilizing air gage calibration restrictor kits. For fast and reliable service on your Mahr Federal air gage contact our service department for a free quote.