Cast Iron Soil Pipe Coupling 4 Inch
A straight coupling fitting of nonmalleable cast iron used to connect two ends of 4-inch cast-iron soil pipes in sewer and drainage lines. It features hub-and-spigot design for push-on assembly with compression gaskets. Falls under HTS 7307.11.0045 as a cast fitting tailored for cast-iron soil pipe systems.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 4.8% | +35.0% | 39.8% |
| 🇲🇽Mexico | 4.8% | +10.0% | 14.8% |
| 🇨🇦Canada | 4.8% | +10.0% | 14.8% |
| 🇩🇪Germany | 4.8% | +10.0% | 14.8% |
| 🇯🇵Japan | 4.8% | +10.0% | 14.8% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for pressure pipe rather than soil pipe
Pressure-rated cast iron fittings have separate statistical suffixes for different applications.
If threaded or flanged design
Threaded cast iron fittings are excluded from plain-end soil pipe category.
If imported as part of complete pump assembly
Fittings integral to machinery like pumps are classified by end-use assembly rather than standalone.
Not sure which classification is right?
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Import Tips & Compliance
• Provide detailed specs showing hub-spigot compatibility with cast-iron soil pipe per industry standards like CISPI 301
• Ensure country-of-origin markings are cast into the fitting to meet US customs permanence requirements
• Avoid bulk packaging mislabeled for other uses, as it could lead to reclassification under general fittings headings
Related Products under HTS 7307.11.00.45
Cast Iron Soil Pipe Elbow 90 Degree
A 90-degree elbow fitting made of nonmalleable cast iron, specifically designed for joining cast-iron soil pipes in plumbing drainage systems. It connects two sections of soil pipe at a right angle, ensuring a secure, leak-proof fit for wastewater transport. Classified under HTS 7307.11.0045 due to its cast iron construction and exclusive use in cast-iron soil pipe applications.
Cast Iron Soil Pipe Cross Fitting 6 Inch
A four-way cross fitting made from nonmalleable cast iron for 6-inch cast-iron soil pipes, enabling multiple branch connections in complex drainage layouts. Hub-and-spigot joints ensure compatibility with standard soil pipe. HTS 7307.11.0045 covers this specialized cast fitting.
Cast Iron Soil Pipe Cleanout Adapter
Nonmalleable cast iron adapter fitting for installing cleanout plugs in cast-iron soil pipe systems, allowing maintenance access. Threaded cap compatible design. Fits HTS 7307.11.0045 as dedicated soil pipe cast fitting.
Cast Iron Soil Pipe Saddle Hub
A saddle-style hub fitting of nonmalleable cast iron that straps onto existing cast-iron soil pipe for branch connections without cutting. Ideal for retrofits. HTS 7307.11.0045 for soil pipe cast fittings.
Cast Iron Soil Pipe Double Hub Bend
Double-hub 45-degree bend fitting from nonmalleable cast iron for cast-iron soil pipe, providing smooth direction changes. Standard for commercial plumbing. Under HTS 7307.11.0045.
Cast Iron Soil Pipe Tap Adapter
Nonmalleable cast iron adapter for tapping into cast-iron soil pipe lines for side entries. Used in repairs. HTS 7307.11.0045.