Galvanized Steel Pipe Coupling
A galvanized steel coupling designed to join two pipes of the same diameter end-to-end in water supply or drainage systems. Classified under HTS 7307.99.50 as an 'other' iron or steel pipe fitting, not covered by more specific threaded or flanged categories. The zinc coating provides corrosion resistance for outdoor applications.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 4.3% | +75.0% | 79.3% |
| 🇲🇽Mexico | 4.3% | +50.0% | 54.3% |
| 🇨🇦Canada | 4.3% | +50.0% | 54.3% |
| 🇩🇪Germany | 4.3% | +50.0% | 54.3% |
| 🇯🇵Japan | 4.3% | +50.0% | 54.3% |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If specifically threaded nipples
Threaded nipples have a dedicated subheading, distinguishing them from general couplings.
If sold as a threaded set with unions
Threaded unions or sets may fall under 7307.92 based on connection mechanism.
If imported in unfinished tube form
Unfinished or semi-manufactured tubes shift to Chapter 73 tubes, not fittings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide galvanization thickness certification to support corrosion resistance claims during customs valuation
• Label shipments clearly as 'pipe couplings' to prevent confusion with nipples under 7307.19
Related Products under HTS 7307.99.50
Carbon Steel Cross Fitting
A carbon steel cross fitting connecting four pipes at right angles for distribution manifolds in oil and gas lines. HTS 7307.99.50 covers it as other pipe fittings of iron or steel. High-strength for demanding pressure environments.
Steel Pipe End Cap
Plain steel end cap for sealing pipe extremities in temporary setups or storage. Falls under HTS 7307.99.50 as other tube fittings. Economical solution for protection during transport.
Stainless Steel Bulkhead Fitting
Stainless steel bulkhead fitting for passing pipes through tank walls, used in marine and chemical tanks. HTS 7307.99.50 for other steel fittings. Sealed design prevents leaks.
Galvanized Steel Pipe Bend
Galvanized 45-degree pipe bend for smooth flow direction changes in drainage. Other fitting under HTS 7307.99.50. Durable for outdoor use.
Carbon Steel Pipe Plug
Threaded carbon steel plug for closing pipe openings in pressure systems. HTS 7307.99.50 other category. Square head for wrench use.
Steel Pipe Reducer Bushing
Steel bushing reducing female threads for pipe size adaptation. Other fitting HTS 7307.99.50. Essential for retrofits.