# HTS 8404: Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof:

> Plain-language tariff reference from the USITC Harmonized Tariff Schedule on [PlainTariff](https://plaintariff.com/).

## Duty rates

- **General (MFN) rate:** Free

## Classification path

- **Section XVI:** [Machinery; Electrical Equipment; Parts Thereof](https://plaintariff.com/section/xvi-machinery-electrical-equipment-parts-thereof)
- **Chapter 84:** [Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof](https://plaintariff.com/chapter/chapter-84-nuclear-reactors-boilers-machinery-and-mechanical-appliances-parts-thereof)
- **HTS code:** 8404

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- [Tariff calculator](https://plaintariff.com/tools/tariff-calculator)
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- [Methodology & sources](https://plaintariff.com/methodology)

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*Source: U.S. International Trade Commission Harmonized Tariff Schedule. HTML canonical: https://plaintariff.com/heading/8404-auxiliary-plant-for-use-with-boilers-of-heading-8402-or-8403*