a duct that provides ventilation (as in mines)
a category of flexible duct that has been
Rectangular or round metal pipe used to convey warm or cold air through house and back to forced-air furnace, or to air conditioning unit.
Ducts, usually made of sheet metal, that carry cooled or heated air to all rooms.
Ducts that carry air to rooms in your home.
The pipes that carry warm and cold air to rooms.
PIPES THAT CARRY WARM AND/OR COLD AIR TO ROOMS (SUPPLIES) AND BACK (RETURNS) TO THE HVAC - HEATING AND AIR CONDITIONING - SYSTEM.
Tubes, channels, or other tubular structures used to carry air to a specific location.
Pipes that carry warm air and cold air to rooms and back to furnace or air conditioning system.
