Ductile Iron Grooved End Coupling
Cast ductile iron coupling with roll-grooved ends for mechanical pipe joining. Under HTS 7307.19.90.80 as other cast fittings despite grooving. Used in fire protection systems.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for iron/steel tubes of 7306
Tube-specific couplings have dedicated codes.
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
• UL/FM listings mandatory for fire protection use
• Groove dimensions per CWP/AWWA specs
• Separate from Victaulic-style retainers which may be 7307.99
Related Products under HTS 7307.19.90.80
Ductile Cast Iron Coupling 6-inch
A straight cast iron coupling for joining plain-end pipes in underground water mains. HTS 7307.19.90.80 applies to this other cast fitting of iron, suitable for municipal water distribution. Features higher tensile strength than gray iron.
Gray Cast Iron Sleeve Coupling 8-inch
Plain-end sleeve coupling made from gray cast iron for repairing underground pipes. HTS 7307.19.90.80 covers this other cast fitting. Used in utility maintenance for water/sewer lines.
Cast Iron Lateral Fitting 3-inch
45-degree lateral cast iron fitting for service taps in water distribution. HTS 7307.19.90.80 for other cast fittings. Standard for municipal tapping saddles.
Carbon Steel Cast Union Fitting 2-inch
Cast carbon steel union fitting for easy pipe disconnection in maintenance lines. Under HTS 7307.19.90.80 as other cast fittings. Includes nut and seat for disassembly.
Cast Steel Plug Fitting 1-inch
Square-head cast steel plug for temporary pipe sealing during testing. HTS 7307.19.90.80 applies to other cast iron/steel fittings. Removable for pressure testing.
Cast Iron Floor Drain Body Fitting
Body casting for floor drains in commercial plumbing, plain end connections. Classified HTS 7307.19.90.80 as other cast iron fittings. Connects to drain piping.