23 00 00 "Heating, Ventilating, and Air-Conditioning (HVAC)"

23 30 00 HVAC Air Distribution

23 31 00 HVAC Ducts and Casings 23 32 00 Air Plenums and Chases 23 33 00 Air Duct Accessories 23 34 00 HVAC Fans 23 35 00 Special Exhaust Systems 23 36 00 Air Terminal Units 23 37 00 Air Outlets and Inlets 23 38 00 Ventilation Hoods

2 Manufacturers

Linder USA

NOVA Ceilings