See | 22 15 19 for plumbing general service packaged air compressors. 22 61 00 for compressed air systems for laboratory and health care facilities. 23 60 00 for HVAC compressors. 40 05 00 for process valves used with compressors and similar equipment. 40 90 00 for process instrumentation and controls. 41 65 13 for mobile compressors. 43 11 00 for gas fans, blowers, pumps, and boosters. 43 15 00 for air and gas filters. |