- 11 53 00 - Laboratory Equipment
- 11600 - Laboratory Equipment
- 13975 - Standpipes and Hoses
- 15060 - Hangers and Supports
- 15070 - Mechanical Sound, Vibration, and Seismic C
- 15075 - Mechanical Identification
- 15080 - Mechanical Insulation
- 15105 - Pipes and Tubes
- 15110 - Valves
- 15120 - Piping Specialties
- 15130 - Pumps
- 15200 - Process Piping
- 15300 - Fire Protection Piping
- 15400 - Plumbing Fixtures and Equipment
- 15410 - Plumbing Fixtures
- 15450 - Potable Water Storage Tanks
- 15470 - Domestic Water Filtrating Equipment
- 15480 - Domestic Water Heaters
- 15490 - Pool and Fountain Equipment
- 15500 - Heat Generation
- 15510 - Heating Boilers and Accessories
- 15520 - Feedwater Equipment
- 15530 - Furnaces
- 15540 - Fuel-Fired Heaters
- 15550 - Breechings, Chimneys, and Stacks
- 15610 - Refrigeration Compressors
- 15620 - Packaged Water Chillers
- 15640 - Packaged Cooling Towers
- 15660 - Liquid Coolers and Evaporative Condensers
- 15670 - Refrigerant Condensing Units
- 15700 - Heating, Ventilating, Air Conditioning Equipment
- 15710 - Heat Exchangers
- 15730 - Unitary Air Conditioning Equipment
- 15740 - Heat Pumps
- 21 05 19 - Meters and Gages for Fire-Suppression Systems
- 21 05 23 - General-Duty Valves for Water-Based Fire-Suppression Piping
- 21 05 29 - Hangers and Supports for Fire-Suppression Piping and Equipment
- 21 05 48 - Vibration and Seismic Controls for Fire-Suppression Piping and Equipment
- 21 05 53 - Identification for Fire-Suppression Piping and Equipment
- 21 07 00 - Fire Suppression Systems Insulation
- 21 07 16 - Fire-Suppression Equipment Insulation
- 21 07 19 - Fire-Suppression Piping Insulation
- 21 11 00 - Facility Fire-Suppression Water-Service Piping
- 21 12 00 - Fire-Suppression Standpipes
- 21 12 13 - Fire-Suppression Hoses and Nozzles
- 22 05 19 - Meters and Gages for Plumbing Piping
- 22 05 23 - General-Duty Valves for Plumbing Piping
- 22 05 29 - Hangers and Supports for Plumbing Piping and Equipment
- 22 05 48 - Vibration and Seismic Controls for Plumbing Piping and Equipment
- 22 05 53 - Identification for Plumbing Piping and Equipment
- 22 07 00 - Plumbing Insulation
- 22 07 16 - Plumbing Equipment Insulation
- 22 07 19 - Plumbing Piping Insulation
- 22 12 00 - Facility Potable-Water Storage Tanks
- 22 30 00 - PLUMBING EQUIPMENT
- 22 32 00 - Domestic Water Filtration Equipment
- 22 33 00 - Electric Domestic Water Heaters
- 22 34 00 - Fuel-Fired Domestic Water Heaters
- 22 35 00 - Domestic Water Heat Exchangers
- 22 40 00 - PLUMBING FIXTURES
- 22 50 00 - POOL AND FOUNTAIN PLUMBING SYSTEMS
- 23 05 19 - Meters and Gages for HVAC Piping
- 23 05 23 - General-Duty Valves for HVAC Piping
- 23 05 29 - Hangers and Supports for HVAC Piping and Equipment
- 23 05 48 - Vibration and Seismic Controls for HVAC Piping and Equipment
- 23 05 53 - Identification for HVAC Piping and Equipment
- 23 07 00 - HVAC Insulation
- 23 07 13 - Duct Insulation
- 23 07 16 - HVAC Equipment Insulation
- 23 07 19 - HVAC Piping Insulation
- 23 21 23 - Hydronic Pumps
- 23 50 00 - CENTRAL HEATING EQUIPMENT
- 23 51 00 - Breechings, Chimneys, and Stacks
- 23 51 13 - Draft Control Devices
- 23 51 16 - Fabricated Breechings and Accessories
- 23 51 19 - Fabricated Stacks
- 23 51 23 - Gas Vents
- 23 51 33 - Insulated Sectional Chimneys
- 23 52 00 - Heating Boilers
- 23 52 16 - Condensing Boilers
- 23 52 19 - Pulse Combustion Boilers
- 23 52 23 - Cast-Iron Boilers
- 23 52 33 - Water-Tube Boilers
- 23 52 39 - Fire-Tube Boilers
- 23 53 00 - Heating Boiler Feedwater Equipment
- 23 53 13 - Boiler Feedwater Pumps
- 23 53 16 - Deaerators
- 23 54 00 - Furnaces
- 23 54 13 - Electric-Resistance Furnaces
- 23 54 16 - Fuel-Fired Furnaces
- 23 55 00 - Fuel-Fired Heaters
- 23 55 13 - Fuel-Fired Duct Heaters
- 23 55 23 - Gas-Fired Radiant Heaters
- 23 55 33 - Fuel-Fired Unit Heaters
- 23 57 00 - Heat Exchangers for HVAC
- 23 57 16 - Steam-to-Water Heat Exchangers
- 23 57 19 - Liquid-to-Liquid Heat Exchangers
- 23 60 00 - CENTRAL COOLING EQUIPMENT
- 23 61 00 - Refrigerant Compressors
- 23 61 13 - Centrifugal Refrigerant Compressors
- 23 61 16 - Reciprocating Refrigerant Compressors
- 23 61 23 - Rotary-Screw Refrigerant Compressors
- 23 63 00 - Refrigerant Condensers
- 23 64 00 - Packaged Water Chillers
- 23 64 13 - Absorption Water Chillers
- 23 64 16 - Centrifugal Water Chillers
- 23 64 19 - Reciprocating Water Chillers
- 23 64 26 - Rotary-Screw Water Chillers
- 23 65 00 - Cooling Towers
- 23 65 13 - Forced-Draft Cooling Towers
- 23 65 16 - Natural-Draft Cooling Towers
- 23 65 33 - Liquid Coolers
- 23 70 00 - CENTRAL HVAC EQUIPMENT
- 23 76 00 - Evaporative Air-Cooling Equipment
- 23 80 00 - DECENTRALIZED HVAC EQUIPMENT
- 23 81 00 - Decentralized Unitary HVAC Equipment
- 23 81 13 - Packaged Terminal Air-Conditioners
- 23 81 16 - Room Air-Conditioners
- 23 81 26 - Split-System Air-Conditioners
- 23 81 43 - Air-Source Unitary Heat Pumps
- 23 81 46 - Water-Source Unitary Heat Pumps
- 40 10 00 - GAS AND VAPOR PROCESS PIPING
- 40 20 00 - LIQUIDS PROCESS PIPING