ABS Vent Pipe Reducer Bushing 2 to 1.5 Inch
A reducer bushing of ABS plastic that steps down 2-inch to 1.5-inch vent pipes in DWV systems, non-pressure rated for air venting. Classified in HTS 3917.40.00.50 for miscellaneous DWV plumbing fittings. Friction-fit design simplifies installation in plumbing vents.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If a threaded plastic adapter
Threaded DWV fittings have separate subheadings from plain reducer bushings.
If for silicone or rubber-based reducers
Artificial intestine-like flexible fittings classify under basic plastic tubes.
If bulk imported for industrial assembly
Unfinished plastic articles for further manufacturing may use tableware heading.
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.
Import Tips & Compliance
• Include UV resistance certification if for above-ground vents to support material claims
• Declare polymer as ABS per Chapter 39 notes (95%+ monomer content) for subheading accuracy
Related Products under HTS 3917.40.00.50
ABS Sanitary Cross Fitting 2 Inch DWV
A cross intersection fitting in ABS for four-way DWV pipe junctions in sanitary waste systems, non-pressure rated. HTS 3917.40.00.50 for other plastic DWV plumbing fittings. Used where multiple drains converge.
PVC Test Cap for DWV Inspection 6 Inch
Threaded test cap in PVC for temporarily sealing 6-inch DWV pipes during inspection or pressure testing (non-operational). Classified HTS 3917.40.00.50 as other non-pressure plumbing fittings. Removable for system verification.
PVC DWV Expansion Joint 3 Inch
Flexible expansion joint fitting in PVC for 3-inch DWV pipes to absorb thermal movement in long runs, non-pressure. HTS 3917.40.00.50 other DWV fittings. Prevents cracking in temperature-variable installs.
ABS Roof Vent Flash Collar 2 Inch
Flash collar fitting in ABS for sealing 2-inch DWV vent pipes through roofs, non-pressure plumbing component. Under HTS 3917.40.00.50 for other DWV fittings. Weatherproof design for exterior exposure.
PVC DWV Trap Adapter 1.5 Inch
Adapter for connecting sink traps to 1.5-inch DWV waste lines, slip or threaded PVC, non-pressure. HTS 3917.40.00.50 other plumbing fittings. Standard for kitchen/bathroom drains.
PVC Underground Drain Saddle 4 Inch
Saddle tee fitting for tapping into 4-inch PVC DWV drain pipes underground, non-pressure rated. Classifies in HTS 3917.40.00.50 as other DWV plumbing. Solvent-weld for branch lines.