Nonmalleable Cast Iron Sewer Service Box
A heavy-duty cast iron service box for accessing underground sewer valves and cleanouts in municipal systems. Classified under HTS 7325.10.0030 due to its construction from nonmalleable cast iron for valve protection in service applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of malleable cast iron
Malleable cast iron articles have a separate subheading from nonmalleable in 7325.
If for parts of sewage machinery
If integral to pumps or treatment machinery, classification moves to Chapter 84.
If sold as a fabricated metal article with welds
Other articles of iron/steel not cast may fall under Chapter 73's general provisions.
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 test reports confirming nonmalleable cast iron composition to meet statistical requirements
• Label with load-bearing capacity (e.g
• H-20 rating) for infrastructure compliance
• Avoid common pitfalls like misdeclaring as malleable iron, which shifts to 7325.91
Related Products under HTS 7325.10.00.30
Cast Iron Water Meter Valve Box
A nonmalleable cast iron box designed to house and protect underground water meter valves, providing access for maintenance and reading. It falls under HTS 7325.10.0030 as a valve box made of cast iron, specifically for utility service applications.
Cast Iron Irrigation Valve Service Box
Durable nonmalleable cast iron box for accessing control valves in agricultural irrigation systems. Classified in HTS 7325.10.0030 for its role as a valve service box of cast iron.
Traffic-Rated Cast Iron Valve Box
Heavy-duty nonmalleable cast iron valve box rated for vehicular traffic over underground utilities. HTS 7325.10.0030 applies to these cast iron service boxes for valve protection.
Municipal Cast Iron Curb Valve Box
Cast iron box installed at curbside to enclose shut-off valves for water mains in urban settings. It qualifies for HTS 7325.10.0030 as a nonmalleable cast iron service box specifically for valve access.
Underground Gas Service Valve Box
Nonmalleable cast iron enclosure for protecting gas shut-off valves buried underground in distribution lines. Falls under HTS 7325.10.0030 as a cast iron service box for utility valves.
Fire Hydrant Service Valve Box
Cast iron box providing access to post-indicator valves for fire hydrant systems in public safety infrastructure. It is classified under HTS 7325.10.0030 as a nonmalleable cast iron valve service box.