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PVC DWV Coupling 3 Inch Slip Joint

A slip joint coupling made from polyvinyl chloride for connecting two 3-inch PVC DWV pipes in drain systems, allowing for easy alignment and expansion. Used in plumbing for waste and vent lines. Falls under HTS 3917.40.00.20 as a non-pressure rated PVC plumbing fitting for DWV.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.3%+37.5%42.8%
🇲🇽Mexico5.3%+10.0%15.3%
🇨🇦Canada5.3%+10.0%15.3%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3917.39.00Lower: 40.6% vs 42.8%

If of other plastics like polyethylene

DWV fittings of polyethylene are under 'Other plastics' in the fittings subheading.

3917.10Lower: 16.7% vs 42.8%

If artificial gut for industrial use

PVC fittings resembling artificial gut (e.g., sausage casings) shift to heading 3917.10.

3926.90.99Lower: 25.3% vs 42.8%

If not specifically for plumbing

General PVC articles not identifiable as pipe fittings go to other articles of plastics.

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.

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Import Tips & Compliance

• Provide material test reports confirming PVC composition per subheading note (95%+ PVC monomer content)

• Label shipments clearly as 'DWV non-pressure fittings' to prevent confusion with pressure pipe fittings

Related Products under HTS 3917.40.00.20

PVC DWV Stack Adapter 6 Inch

6-inch PVC adapter for vertical stack connections in DWV plumbing for multi-story drainage. Non-pressure polyvinyl chloride. HTS 3917.40.00.20 for such fittings.

PVC DWV Vent Cap 2 Inch Threaded

Threaded vent cap fitting of PVC for terminating DWV vent pipes on roofs. Non-pressure rated for plumbing. Classifies under 3917.40.00.20.

PVC DWV Trap Adapter P-Trap 1.5 Inch

P-trap adapter fitting in PVC for sink drains in DWV systems, non-pressure. HTS 3917.40.00.20.

PVC DWV Double Wye 4 Inch

Double wye PVC fitting for complex DWV branching. Non-pressure plumbing. 3917.40.00.20.

PVC DWV Floor Drain Fitting 4 Inch

4-inch PVC fitting for floor drains in DWV. 3917.40.00.20.

PVC DWV Band Hanger Fitting Adapter

Adapter for band hangers in PVC DWV pipe support. 3917.40.00.20.