Harmonized System
U.S. imports of rigid tubes, pipes & hoses of polypropylene (HS 391722) totaled $9.4M in August 2026, imported from 41 countries.
Importers of Rigid Tubes, Pipes & Hoses of Polypropylene paid $992K in duties in August 2026, an effective tariff rate of 10.51% of the $9.4M imported — duty actually collected as a share of that value, not the published tariff schedule. Rigid Tubes, Pipes & Hoses of Polypropylene imports of $9.4M in August 2026 ran 29% above the year-to-date monthly average of $7.3M.
Last updated: August 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.
1.0K shipments/mo
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.
HSChapter 39
Subheading 10 of 10 in heading 3917
Subheading 391722 · $9.4M of $322.0M
Trade Directory
List your company under HS 391722 — Rigid Tubes, Pipes & Hoses of Polypropylene, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3917220000 | Tubes,Pipes & Hoses,Rigid,of Polymers of Propylene | $9.4M | 10.51% | 87.87% | $992K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3917220000 | Tubes,Pipes & Hoses,Rigid,of Polymers of Propylene | $2.5M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$9.4MYoY · free account
Exports
$2.5MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $89.1M of Rigid Tubes, Pipes & Hoses of Polypropylene.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Germany and Austria together supply 41% of it. Italy pays 10.0% duty; Canada 0.0%.
customs district
destination
entry
rate provision · imports
12.1% enters free of duty; duty collected equals 10.51% of total import value.