Does HTS 8404 fit your product?
This is the fastest way to use the page: compare the exact commercial description with the legal wording, then check the closest child or sibling provision. A valid code is not automatically the right code for every product in the same category.
- The product must match the tariff wording: 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:.
- This level has 3 more specific provisions; do not stop here if a child description fits better.
- The displayed duty is not stated at this level; origin programs, trade remedies, quotas and taxes may change the final amount.
What does HTS 8404 cover?
This provision appears in the 2026 Harmonized Tariff Schedule of the United States under the following legal tariff hierarchy.
- 1Auxiliary 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:
More specific provisions
Choose a child provision when its description matches a measurable product fact such as material, capacity, use or construction.