# United States tariff line 7020.00.30.00: Quartz reactor tubes and holders designed for insertion into diffusion and oxidation furnaces for production of semiconductor wafers

> In the United States tariff, line 7020.00.30.00 covers quartz reactor tubes and holders designed for insertion into diffusion and oxidation furnaces for production of semiconductor wafers. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 7020.00 in heading 70.20 (chapter 70).

Source: https://border.bot/countries/united-states/hs-codes/7020003000
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 70](https://border.bot/countries/united-states/hs-codes/70) / [7020.00](https://border.bot/countries/united-states/hs-codes/702000) / [7020.00.30.00](https://border.bot/countries/united-states/hs-codes/7020003000)

## Key facts

- Tariff line: 7020.00.30.00
- Covers: Quartz reactor tubes and holders designed for insertion into diffusion and oxidation furnaces for production of semiconductor wafers
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [7020.00](https://border.bot/hs-codes/702000)

## What this line covers

In the United States tariff, line 7020.00.30.00 covers quartz reactor tubes and holders designed for insertion into diffusion and oxidation furnaces for production of semiconductor wafers.

Its legal text is “Quartz reactor tubes and holders designed for insertion into diffusion and oxidation furnaces for production of semiconductor wafers”.

## How it is structured

It falls under HS subheading 7020.00 in heading 70.20 (chapter 70). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 70: Glass and glassware
- Heading 70.20: Other articles of glass
- Line 7020.00.30.00: Quartz reactor tubes and holders designed for insertion into diffusion and oxidation furnaces for production of semiconductor wafers

## Duty

Goods under this line enter free of general (MFN) duty.

## In other countries

No other national tariff on border.bot has live lines under 7020.00 yet.

- [The Harmonized System text for 7020.00](https://border.bot/hs-codes/702000)

## Other lines under 7020.00

- [7020.00.40.00](https://border.bot/countries/united-states/hs-codes/7020004000) Glass inners for vacuum flasks or for other vacuum vessels
- [7020.00.60.00](https://border.bot/countries/united-states/hs-codes/7020006000) Other

- Previous line: [7019.90.51.50](https://border.bot/countries/united-states/hs-codes/7019905150) Other
- Next line: [7020.00.40.00](https://border.bot/countries/united-states/hs-codes/7020004000) Glass inners for vacuum flasks or for other vacuum vessels

## Frequently asked questions

### What does tariff line 7020.00.30.00 cover in the United States tariff?

In the United States tariff, line 7020.00.30.00 covers quartz reactor tubes and holders designed for insertion into diffusion and oxidation furnaces for production of semiconductor wafers.

### What is the general (MFN) duty on 7020.00.30.00 in the United States?

Goods under this line enter 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/7020003000.json