Heading 7322: Radiators for central heating, not electrically heated, and parts thereof, of iron or steel; air heaters and hot air distributors (including distributors which can also distribute fresh or conditioned air), not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel:

From Chapter 73: Chapter 73

HTS Codes (10-Digit)

HTS Code Description General Duty
7322110000
Radiators and parts thereof Of cast iron
 Free
7322190000
Radiators and parts thereof Other
 Free
7322900000
Radiators for central heating, not electrically heated, and parts thereof, of iron or steel; air heaters and hot air distributors (including distributors which can also distribute fresh or conditioned air), not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel Other, including parts
 Free
7322900015
Other, including parts Air heaters, not electrically heated, incorporating a motor-driven fan or blower
 Free
7322900030
Other, including parts Hot air distributors, not electrically heated, incorporating a motor-driven fan or blower
 Free
7322900045
Other, including parts Parts of air heaters and hot air distributors
 Free