|
| 031 02 | AIR CONDITIONING UNITS, PORTABLE OR ROOM AC UNITS, COMPUTER ROOMS, HOSPITAL ROOMS, SPORTING EVENTS, ETC. |
| 031 03 | AIR CONDITIONERS SYSTEMS, COMMERCIAL AND INDUSTRIAL, INCLUDING PARTS AND ACCESSORIES, (NOT OTHERWISE CLASSIFIED) |
| 031 04 | AIR CONDITIONERS: CONTROLLED ENVIRONMENT, COMPUTER ROOMS, ETC., INCLUDING PARTS AND ACCESSORIES, (NOT OTHERWISE CLASSIFIED) |
| 031 05 | AIR CONDITIONING AND HEATING SYSTEMS, WINDOW AND WALL MOUNTED, DUCTLESS, INCLUDING PARTS AND ACCESSORIES, (NOT OTHERWISE CLASSIFIED) |
| 031 06 | AIR CONDITIONING AND HEATING CENTRAL AIR SYSTEMS, INCLUDING PARTS AND ACCESSORIES, (NOT OTHERWISE CLASSIFIED) |
| 031 07 | AIR CIRCULATION EQUIPMENT (NOT OTHERWISE CLASSIFIED) |
| 031 08 | AIR CURTAINS |
| 031 09 | AIR FLOW METERS |
| 031 10 | AIR PURIFIERS, ACCESSORIES AND SUPPLIES |
| 031 11 | BLOWERS, INDUSTRIAL TYPES |
| 031 13 | CHILLERS, HEAT EXCHANGERS AND RECEIVERS |
| 031 14 | CHILLED WATER SYSTEM, PORTABLE |
| 031 15 | CHILLED WATER METER SYSTEM |
| 031 16 | COATINGS AND SEALANTS, DUCT |
| 031 17 | COILS, CHILLED OR HEATED WATER, AND DIRECT EXPANSION |
| 031 18 | COIL AND FAN UNITS, AIR CONDITIONING |
| 031 20 | COMPRESSORS, AIR CONDITIONING, WINDOW UNIT TYPE INCLUDING PARTS AND ACCESSORIES |
| 031 21 | COMPRESSORS, AIR CONDITIONING, INDUSTRIAL TYPE, AND PARTS |
| 031 23 | CONDENSING UNITS (FOR AIR CONDITIONERS) |
| 031 24 | CONTROLS, COOLING TOWER WATER TREATMENT: PH, CONDUCTIVITY, CORROSION SENSORS |
| 031 25 | CONTROLS, LIMIT SWITCHES, RELAYS, THERMOSTATS, GAS VALVES, ETC. |
| 031 26 | CONTROL SYSTEMS: COMPLETE, AUTOMATIC TEMPERATURE CONTROL |
| 031 27 | COOLING TOWER WATER TREATMENT: NON-CHEMICAL OZONE, CENTRIFUGAL SEPARATORS, MAGNETIC DESCALING EQUIP. (SEE CLASS 885 FOR CHEMICAL TYPES) |
| 031 28 | COOLING TOWERS, FORCED AIR, GRAVITY, ETC. |
| 031 29 | DAMPERS, MOTORIZED |
| 031 30 | DEHUMIDIFIERS AND HUMIDIFIERS |
| 031 31 | DUCT CLEANING EQUIPMENT, AIR |
| 031 32 | DUCT, PREFABRICATED, FLEXIBLE OR RIGID: GLASS FIBER, PLASTIC, ETC. |
| 031 33 | DUCT, FABRICATED, METAL |
| 031 34 | DUST COLLECTORS, INDUSTRIAL TYPE |
| 031 36 | ELECTRONIC AIR CLEANERS, ELECTROSTATIC PRECIPITATORS, OZONATORS, INCLUDING PARTS AND ACCESSORIES |
| 031 38 | EVAPORATIVE COOLERS |
| 031 40 | FANS, INDUSTRIAL TYPES: ATTIC, EXHAUST, FORCED DRAFT, ETC., INCLUDING FAN BLADES AND FAN PARTS |
| 031 41 | FANS, ROOM TYPE: CEILING AND PORTABLE TYPE, STATIONARY AND OSCILLATING |
| 031 43 | FILTER COATING, ADHESIVE, COIL CLEANERS, DEGREASING SOLVENTS, ETC. |
| 031 44 | FILTERS, AIR CONDITIONING AND FURNACE, PERMANENT TYPE |
| 031 45 | FILTERS, AIR CONDITIONING AND FURNACE, DISPOSABLE TYPE |
| 031 46 | FILTERS AND FILTER MEDIA, EVAPORATIVE COOLER |
| 031 49 | FILTER FRAMES, METAL |
| 031 50 | FREON |
| 031 51 | FURNACES, CENTRAL HEATING TYPE, FORCED AIR, GAS FIRED |
| 031 53 | GRILLES, DIFFUSERS, REGISTERS, ETC. |
| 031 55 | HAND TOOLS, HVAC MAINTENANCE, TESTING, RECORDING, DETECTION, ETC. |
| 031 56 | HEAT PUMPS |
| 031 57 | HEATERS, ELECTRIC, BASEBOARD TYPE, INCLUDING PARTS AND ACCESSORIES (INACTIVE, PLEASE SEE COMMODITY CODE 031-58 EFFECTIVE JANUARY 1, 2016) |
| 031 58 | HEATERS, ELECTRIC. BASEBOARD, PANEL OR WALL TYPE, INCLUDING PARTS AND ACCESSORIES |
| 031 59 | HEATERS, ELECTRIC, PORTABLE, INCLUDING PARTS AND ACCESSORIES |
| 031 60 | HEATERS, GAS-FIRED: SPACE, ALL TYPES, INCLUDING PARTS AND ACCESSORIES |
| 031 61 | HEATERS, GAS-FIRED: WALL TYPE, VENTED AND UNVENTED, INCLUDING PARTS AND ACCESSORIES |
| 031 62 | HEATERS, KEROSENE OR OIL FIRED: SPACE TYPE, VENTED AND UNVENTED, INCLUDING PARTS AND ACCESSORIES |
| 031 63 | HEATERS, SPACE, STEAM |
| 031 65 | HEATING ELEMENTS, ELECTRIC |
| 031 66 | HYDRONIC SPECIALTIES |
| 031 67 | HVAC EQUIPMENT, ACCESSORIES AND SUPPLIES (NOT OTHERWISE CLASSIFIED) |
| 031 69 | ODOR CONTROL EQUIPMENT, ROOM OR PORTABLE TYPE, INCLUDING PARTS AND ACCESSORIES |
| 031 70 | ODOR CONTROL EQUIPMENT, DUCT AIR, INCLUDING OZONE TYPE |
| 031 72 | PUMPS, DESCALING ACID |
| 031 73 | PUMPS, REFRIGERANT CIRCULATING |
| 031 74 | PUMPS, REFRIGERANT VACUUM |
| 031 75 | RADIATORS, HEATING |
| 031 76 | REFURBISHED HVAC PRODUCTS, INCLUDING PARTS AND ACCESSORIES |
| 031 78 | ROOF VENTILATORS, POWER DRIVEN, INCLUDING REFURBISHED TYPES |
| 031 79 | ROOF VENTILATORS, WIND DRIVEN, INCLUDING REFURBISHED TYPES |
| 031 80 | SOLAR HEATING UNITS |
| 031 82 | STOVES, WOOD OR COAL |
| 031 87 | TESTING AND RECORDING INSTRUMENTS, AC AND HEATING (INACTIVE, SEE COMMODITY CODE 031-55, EFFECTIVE JANUARY 1, 2016) |
| 031 89 | THERMOMETERS AND GAUGES, AC AND HEATING |
| 031 91 | UNIT HEATERS, ELECTRIC, DUCT AND SUSPENDED TYPES |
| 031 92 | UNIT HEATERS, GAS-FIRED, DUCT AND SUSPENDED TYPES |
| 031 93 | UNIT HEATERS, GAS-FIRE, RADIANT AND INFRARED, PORTABLE AND STATIONARY |
| 031 94 | UNIT HEATERS, STEAM AND HOT WATER TYPES |
| 031 95 | VENTILATION EQUIPMENT AND SYSTEMS (SEE 031-78, 79 FOR ROOF VENTILATORS) |
| 031 96 | VENT PIPES, FITTINGS, AND ACCESSORIES |
| 031 97 | VACUUM SYSTEM, CENTRAL, INCLUDING FILTERS, PARTS AND ACCESSORIES |