Product classification
HS code for Rubber tubing with fittings: 4009.12
Rubber, vulcanised (other than hard rubber), tubing, piping and hoses, not reinforced or otherwise combined with other materials, with fittings.
Classification of rubber tubing with fittings under HS 4009.12
The classification of rubber tubing with fittings under HS code 400912 is determined by the material, the lack of reinforcement, and the presence of attachments. Heading 4009 covers tubes, pipes, and hoses of vulcanized rubber other than hard rubber. The heading is structured based on whether the rubber is reinforced or combined with other materials (such as metal or textile) and whether the tubing is equipped with fittings. Subheading 400912 specifically refers to tubing that is not reinforced or otherwise combined with other materials but is presented with fittings. Fittings include items like joints, elbows, flanges, or couplings that allow the tubing to be connected to other pipes or machinery. The rubber must be vulcanized to fall under this heading; unvulcanized rubber tubing is classified under 4006. The "not reinforced" criteria means the wall of the tube consists entirely of vulcanized rubber without any internal or external layers of wire, fabric, or other strengthening materials. This type of tubing is common in low-pressure applications where the inherent strength of the rubber is sufficient. Classification follows GRI 1 and 6, focusing on the specific physical characteristics described in the subheading text. If the tubing were to have any form of reinforcement, it would immediately move to subheadings 400922, 400932, or 400942, depending on the type of reinforcement used.
- Covers
- Vulcanized rubber hoses with attached metal couplings
- Non-reinforced rubber tubes with plastic connectors
- Flexible rubber piping with flanges for fluid transfer
- Unreinforced synthetic rubber tubing with end-fittings
- Rubber drain hoses with integrated attachment points
- Also under 4009.12
- Parker hose assemblies
- Gates automotive hose kits
- Continental ContiTech fitted hoses
- Trelleborg industrial hose assemblies
- Saint-Gobain medical tubing with connectors.
Codes often confused with 4009.12
Common mistake. The most frequent misclassification occurs with 400911, which is for tubing without fittings. Importers often overlook the presence of connectors or clamps that qualify as fittings. Another error is misclassifying reinforced tubing under 400912; if the rubber contains a textile braid or metal wire, it must be classified under 400922 (metal) or 400932 (textile). Additionally, tubing made of "hard rubber" (ebonite) is excluded from 4009 and falls under 401700.
Top exporters and importers of HS 400912 (the code used for rubber tubing with fittings), 2025
In 2025, the largest exporter of HS 400912 (the code used for rubber tubing with fittings) in UN Comtrade data was China, with 18% of world exports; the largest importer in UN Comtrade data was the United States, with 26% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 400912, not only rubber tubing with fittings.
Top exporters 2025 · share of world exports
- 1 China $125M 18% of world exports
- 2 Taiwan* ~$110M 16% of world exports · partner records ↗
- 3 United States $68M 9.9% of world exports
World total: $684M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $224M 26% of world imports
- 2 Germany $67M 7.7% of world imports
- 3 Mexico $42M 4.8% of world imports
World total: $871M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for rubber tubing with fittings
Brazil splits HS 4009.12 into 2 NCM codes. Pick the one that matches your product:
- 4009.12.10Unreinforced fitted rubber hoses, burst 17.3 MPa+
- 4009.12.90Unreinforced fitted rubber hoses, under 17.3 MPa
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about rubber tubing with fittings
What is the HS code for Rubber tubing with fittings?
The HS code for Rubber tubing with fittings is 400912 (Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, not reinforced or otherwise combined with other materials, with fittings). The HS code for vulcanized rubber tubing that is not reinforced but has fittings is 400912.
How do I classify Rubber tubing with fittings for customs?
Rubber tubing with fittings is classified under HS code 400912 — Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, not reinforced or otherwise combined with other materials, with fittings. This is a 6-digit subheading level code.
What counts as a fitting for this HS code?
Fittings include any device attached to the end of the tube to facilitate connection, such as bolts, flanges, unions, or specialized couplings.
Which countries are the top exporters of rubber tubing with fittings (HS 400912)?
In 2025, the top exporters of HS 400912 (the code used for rubber tubing with fittings) in UN Comtrade data were China ($125M, 18% of world exports), Taiwan (about $110M) and the United States ($68M). World exports came to about $684M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of rubber tubing with fittings (HS 400912)?
In 2025, the top importers of HS 400912 (the code used for rubber tubing with fittings) in UN Comtrade data were the United States ($224M, 26% of world imports), Germany ($67M) and Mexico ($42M). World imports came to about $871M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Rubber tubing with fittings the same in all countries?
The base HS code 400912 for Rubber tubing with fittings is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for rubber tubing with fittings in Brazil?
Brazil splits HS 400912 into 2 NCM codes, so the right one for rubber tubing with fittings depends on the product's details: 4009.12.10 (Unreinforced fitted rubber hoses, burst 17.3 MPa+), 4009.12.90 (Unreinforced fitted rubber hoses, under 17.3 MPa).