PVC DWV Elbow Fitting 90 Degree 4 Inch
A 90-degree elbow fitting made from polyvinyl chloride (PVC) designed for non-pressure drain, waste, and vent (DWV) plumbing systems in residential and commercial buildings. It connects PVC pipes at right angles for drainage applications and falls under HTS 3917.40.00.50 as a plastic plumbing fitting not rated for pressure. Used in sewer and wastewater lines where pressure is not a factor.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If specifically a closet flange
Closet flanges for toilet connections have a dedicated subheading within DWV fittings, separate from general 'other' fittings.
If pressure-rated for flexible hose applications
Pressure-rated plastic fittings fall under flexible tube subheadings, not non-pressure DWV plumbing fittings.
If sold as part of a retail plumbing repair kit
Assembled sets or kits for retail sale may classify under other plastic articles rather than specific plumbing fittings.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify the fitting is explicitly marked as 'DWV' or 'non-pressure' to avoid misclassification into pressure-rated subheadings
• Include material safety data sheets (MSDS) confirming PVC composition and compliance with ASTM D2665 standards for DWV fittings
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.