Air-conditioning, air cooling and ventilation apparatus and instruments; Air conditioners; Air conditioning apparatus; Central air-conditioning installations for industrial purposes; Commercial refrigerators and freezers and replacement parts and fittings therefor; Components for air conditioning and cooling systems, namely, evaporative air coolers; Fabric air dispersion ducts for distributing and dispensing air as part of a HVAC system; Heating systems composed primarily of tubes, pipes and manifolds through which warm or high temperature water circulates; Heating systems for residential and commercial buildings comprised of boilers, valves, pipes, manifolds, control panel switches, and electrical wire, all sold as a unit; HVAC units; Mounting brackets adapted for window-mounted air conditioners; Personal cooling system comprising tubing, a coolant source and temperature controls that may be incorporated into a garment; Pipe freezing unit comprised of cooling aggregate with refrigerant hoses and deep freezer heads; Sink drainer system comprised of a drain tray, sink mount, kick stand and rod