# HS code 8405.10: Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers

> HS code 8405.10 covers producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers. It sits in heading 84.05 (producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof). Other goods of heading 84.05 are classified under 8405.90 (parts). National tariff lines under 8405.10 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/840510
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 84](https://border.bot/hs-codes/84) / [84.05](https://border.bot/hs-codes/8405) / [8405.10](https://border.bot/hs-codes/840510)

## Key facts

- HS code: 8405.10
- Covers: Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers
- Heading: [84.05: Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers](https://border.bot/hs-codes/8405)
- Chapter: [84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof](https://border.bot/hs-codes/84)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/840510)

## What this code covers

HS code 8405.10 covers producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers.

The legal text of the subheading is “Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers”, in HS2022.

## What it doesn’t cover

Other goods of heading 84.05 are classified under 8405.90 (parts).

- [8405.90](https://border.bot/hs-codes/840590) Parts

## How it is structured

8405.10 is a six-digit subheading. Its first two digits, 84, are the chapter; the first four, 8405, are heading 84.05; the last two, 10, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
- Heading 84.05: Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers
- Subheading 8405.10: Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers

## In other countries

National tariff lines under 8405.10 are live on border.bot for the United States (1 line, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/840510): 1 line, used by 1 other country

- Previous subheading: [8404.90](https://border.bot/hs-codes/840490) Parts
- Next subheading: [8405.90](https://border.bot/hs-codes/840590) Parts

## Frequently asked questions

### What does HS code 8405.10 cover?

HS code 8405.10 covers producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers.

### Which heading and chapter is HS code 8405.10 in?

HS code 8405.10 is in heading 84.05 (producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof).

### Where are goods of heading 84.05 classified when 8405.10 doesn’t fit?

Other goods of heading 84.05 are classified under 8405.90 (parts).

### Which countries’ tariffs list national lines under HS code 8405.10?

National tariff lines under 8405.10 are live on border.bot for the United States (1 line, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 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.

Machine-readable: https://border.bot/hs-codes/840510.json