Liquidtight Flexible Nonmetallic Conduit Adapter Tubing
Short steel base sections of liquidtight conduit with heavy-duty PVC insulation liner used as adapters between systems. Still qualifies under HTS 8547.90.00.20 as base metal conduit tubing lined with insulation.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If cast iron or malleable fittings
Metal conduit connectors without insulation liner classify as pipe fittings.
If plastic transition sections
Nonmetallic adapter sections fall under Chapter 39.
Not sure which classification is right?
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Import Tips & Compliance
• UL 1660 for liquidtight flexible nonmetallic conduit transitions
• Specify connector thread type (NPT vs
• PG) in technical data sheets
• Short lengths risk reclassification as 'fittings' without proper documentation
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