22 00 50 Pipe & Pipe Fittings

22 00 00 Plumbing 22 00 50 Pipe & Pipe Fittings 23 09 13 HVAC Instruments & Controls 23 09 14 Valves 23 22 16 Steam & Steam Condensate Specialties

22 00 00 Plumbing 22 00 50 Pipe & Pipe Fittings 22 20 00 Tanks 22 30 00 Plumbing Equipment 22 40 00 Plumbing Fixtures 23 09 14 Valves 23 20 01 Pumps 23 20 20 Direct Buried Piping (Pre-Insulated) 23 21 16 Hydronic Specialties 23 27 00 In-Floor Heating 23 34 23 Power Ventilators 23 52 10 Boilers 23 52 11 Boiler Accessories 23 83 10 Infloor Radiant Heat 28 30 10 Fire Protection

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