Rigid Polystyrene Vent Pipe
Rigid high-impact polystyrene (HIPS) pipe for HVAC ventilation ducts. Under 3917.29.00 as rigid pipe of other plastics not covered by ethylene or propylene specifics.
Import Duty Rates by Country of Origin
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 designed as reservoirs or tanks
Vent components holding fluids shift to 3925 reservoirs of plastics.
If including elbow joints
Pipes with fittings get Free (C) treatment in 3917.40.00.
If imported as polystyrene copolymer beads
Primary form polystyrene expanding or not is in 3903 per polymer notes.
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Import Tips & Compliance
• Ensure insulation properties are documented if marketed for temperature control
• Avoid coiling shipments, as it may imply flexibility to examiners
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