Central Boiler Flue Gas Vent Pipe
Specialized stainless steel vent pipe for exhausting combustion gases from central heating boilers. Engineered for direct attachment to boiler exhaust manifold. HTS 8403.90.00.00 applies as boiler parts.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general stainless steel piping
Non-specific pipes and tubes are classified by material, not end-use in boilers.
If parts of steam/superheated water boilers
If designed for 8402 boilers, it falls under that specific heading parts provision.
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
• Comply with ASME venting standards and provide installation specs; declare exact length/diameter for valuation; check for corrosion resistance certifications
Related Products under HTS 8403.90.00.00
Central Boiler Manifold Header
Forged steel header manifold distributing hot water from central heating boilers to heating zones. Threaded ports specific to boiler sections. HTS 8403.90.00.00 part.
Boiler Low Water Cutoff Switch
Electronic low water cutoff probe switch that shuts down boiler burner when water level drops dangerously low. Specific to central heating boilers. 8403.90.00.00.
Cast Steel Boiler Grate Bars
Replaceable cast steel bars forming the grate in solid fuel central heating boilers for supporting combustion bed. Specific alloy for high heat. HTS 8403.90.00.00.
Boiler Draft Inducer Blower Housing
Aluminum housing for the induced draft fan in gas-fired central heating boilers, promoting proper venting. OEM-specific mounting. Under 8403.90.00.00.
Cast Iron Boiler Heat Exchanger
A cast iron heat exchanger designed specifically as a replacement part for central heating boilers not of heading 8402. It facilitates the transfer of heat from combustion gases to water in the boiler system. Classified under HTS 8403.90.00.00 as a dedicated part of central heating boilers.
Stainless Steel Boiler Burner Assembly
Stainless steel burner assembly tailored for central heating boilers, controlling fuel combustion. It includes nozzle and ignition components integral to boiler operation. Falls under HTS 8403.90.00.00 as parts thereof.