DIVISION 21 - FIRE SUPPRESSION 210500 Common Work Results for Fire Suppression 211313 Wet-Pipe Sprinkler Systems DIVISION 22 – PLUMBING 220500 Common Work Results for Plumbing 220519 Meters and Gages for Plumbing Piping 220523 General-Duty Valves for Plumbing Piping 220529 Hangers and Supports for Plumbing Piping and Equipment 220553 Identification for Plumbing Piping and Equipment 220700 Plumbing Insulation 221116 Domestic Water Piping 221119 Domestic Water Piping Specialties 221316 Sanitary Waste, Vent Piping 221319 Sanitary Waste Piping Specialties 224000 Plumbing Fixtures DIVISION 23 - HEATING, VENTILATION, AND AIR-CONDITIONING (HVAC) 230500 Common Work Results For HVAC 230513 Common Motor Requirements for HVAC Equipment 230529 Hangers and Supports for HVAC Piping And Equipment 230553 Identification for HVAC Piping and Equipment 230593 Testing, Adjusting, and Balancing for HVAC 230713 Duct Insulation 230719 HVAC Piping Insulation 232113 Hydronic Piping 232118 Hydronic Specialties 233113 HVAC Ducts 233300 Air Duct Accessories 233813 Commercial Kitchen Hoods
