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HSChapter 39
U.S. imports of rigid tubes, pipes & hoses of polypropylene (HS 391722) totaled $6.8M in April 2026, traded with 36 countries.
Importers of Rigid Tubes, Pipes & Hoses of Polypropylene paid $717K in duties in April 2026 — an effective duty rate of 13% on $5.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataPolypropylene's higher temperature resistance and chemical inertness compared to polyethylene make rigid PP pipe a preferred choice for hot-water plumbing, chemical processing, and laboratory installations. All US imports under this heading enter on a single tariff line (3917220000), so classification disputes typically center on whether the resin is truly polypropylene versus a copolymer that might shift the article to a different heading. Germany leads US supply, followed by Canada and Colombia — a supplier mix that reflects both European engineering-grade PP production and North American USMCA-integrated manufacturing. Importers sourcing from Germany should account for standard MFN duty rates, as no US free-trade agreement with the EU is currently in force.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Classification of copolymer pipe depends on which polymer predominates by weight or on the essential character of the material. If polypropylene is the predominant constituent, 391722 is the likely heading; if polyethylene predominates, 391721 applies. When the composition is ambiguous, a binding ruling request to CBP is the most reliable path to certainty.
Standard entry documentation applies: commercial invoice, packing list, and bill of lading. Because Germany is not a US FTA partner, no preference certificate is needed, but importers should retain the manufacturer's material certification confirming PP resin type and grade to support classification and any downstream product-liability requirements.
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 3917220000 | TUBES,PIPES & HOSES,RIGID,OF POLYMERS OF PROPYLENE | $6.8M | 13.45% | $717K |
TUBES,PIPES & HOSES,RIGID,OF POLYMERS OF PROPYLENE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3917220000 | TUBES,PIPES & HOSES,RIGID,OF POLYMERS OF PROPYLENE | $3.7M |
TUBES,PIPES & HOSES,RIGID,OF POLYMERS OF PROPYLENE
315.2K kg
ARTICLES OF PLASTICS, NESOI
HS 392690
FLOOR, WALL, ETC COVERS, VINYL CHLORIDE POLYMERS
HS 391810
TABLEWARE AND KITCHENWARE OF PLASTICS
HS 392410
SACKS & BAGS (INCL CONES) OF POLYMERS OF ETHYLENE
HS 392321
HOUSEHOLD AND TOILET ARTICLES NESOI OF PLASTICS
HS 392490
PLATES, SHEETS ETC, NON-CELL ETC, POLYMER
HS 392010
Supplier Network
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| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $291K | $1.3M | +$992K |
| CHICAGO, IL | $867K | $128K | -$739K |
| SAVANNAH, GA | $873K | -- | -$873K |