Ac brackets / frameworks brass & copper fittings brazing & welding compressors condensate drain pumps core drilling machines dehumidifiers / virus washers expansion valves flaring, swaging, crimping tools high pressure water cleaners / pumps hvac cleaning chemicals hvac measuring/diagnostic instruments anemometers clamp meters / multimeters co 2 detectors (indoor air quality) data loggers digital vacuum gauges leak detectors lux meters psychrometers refrigerant scales / recovery meters sound (db) meters superheat/sub cooling meters thermometers weighing scales other instruments indoor units manifolds, hoses miscellaneous items oils recovery units/ service stations service tool bags vacuum pumps