# United States tariff lines under HS 7322.90

> The United States tariff splits HS 7322.90 (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) into 3 national lines: 7322.90.00.15 (air heaters, not electrically heated, incorporating a motor-driven fan or blower), 7322.90.00.30 (hot air distributors, not electrically heated, incorporating a motor-driven fan or blower) and 7322.90.00.45 (parts of air heaters and hot air distributors). Every United States line under 7322.90 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/732290
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 73](https://border.bot/countries/united-states/hs-codes/73) / [7322.90](https://border.bot/countries/united-states/hs-codes/732290)

## Key facts

- HS subheading: [7322.90](https://border.bot/hs-codes/732290)
- Duty (MFN): Free
- National lines: 3
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 73: Articles of iron or steel

## United States lines under 7322.90

The United States tariff splits HS 7322.90 (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) into 3 national lines: 7322.90.00.15 (air heaters, not electrically heated, incorporating a motor-driven fan or blower), 7322.90.00.30 (hot air distributors, not electrically heated, incorporating a motor-driven fan or blower) and 7322.90.00.45 (parts of air heaters and hot air distributors).

Every United States line under 7322.90 is free of general (MFN) duty.

- [7322.90.00.15](https://border.bot/countries/united-states/hs-codes/7322900015) Other, including parts, Air heaters, not electrically heated, incorporating a motor-driven fan or blower. Duty (MFN): free
- [7322.90.00.30](https://border.bot/countries/united-states/hs-codes/7322900030) Other, including parts, Hot air distributors, not electrically heated, incorporating a motor-driven fan or blower. Duty (MFN): free
- [7322.90.00.45](https://border.bot/countries/united-states/hs-codes/7322900045) Other, including parts, Parts of air heaters and hot air distributors. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 7322.90 yet.

- [The Harmonized System text for 7322.90](https://border.bot/hs-codes/732290)

- Previous subheading: [7322.19](https://border.bot/countries/united-states/hs-codes/732219) 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
- Next subheading: [7323.10](https://border.bot/countries/united-states/hs-codes/732310) Table, kitchen or other household articles and parts thereof, of iron or steel; iron or steel wool; pot scourers and scouring or polishing pads, gloves and the like, of iron or steel

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 7322.90?

The United States tariff splits HS 7322.90 (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) into 3 national lines: 7322.90.00.15 (air heaters, not electrically heated, incorporating a motor-driven fan or blower), 7322.90.00.30 (hot air distributors, not electrically heated, incorporating a motor-driven fan or blower) and 7322.90.00.45 (parts of air heaters and hot air distributors).

### What is the duty on HS 7322.90 in the United States?

Every United States line under 7322.90 is free of general (MFN) duty.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/732290.json