23 30 00 HVAC Air Distribution

22 30 00 Plumbing Equipment 22 40 00 Plumbing Fixtures 23 30 00 HVAC Air Distribution 22 00 50 Pipe & Pipe Fittings 22 20 00 Tanks 23 07 13 Duct Insulation 23 07 19 HVAC Piping Insulation 23 20 01 Pumps 23 34 23 Power Ventilators 23 52 10 Boilers 23 09 14 Valves 23 34 33 Air Curtain Units 23 83 10 Infloor Radiant Heat

05 58 10 Sheet Metal Fabrications 23 00 00 Heating, Ventilating and Air Conditioning (HVAC) 23 30 00 HVAC Air Distribution 23 31 00 HVAC Ducts and Casings 23 33 00 Air Duct Accessories 23 37 00 Air Outlets and Inlets