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Ceramic Chimney Flue Pipe

Fired ceramic flue liner pipes for chimney systems to safely vent smoke and gases. Made from high-alumina clay shaped and fired, qualifying as Chapter 69 ceramic pipes. Classified under 6906.00.00.00 as conduits.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
šŸ‡ØšŸ‡³ChinaFree+35.0%35%
šŸ‡²šŸ‡½MexicoFree+10.0%10%
šŸ‡ØšŸ‡¦CanadaFree+10.0%10%
šŸ‡©šŸ‡ŖGermanyFree+10.0%10%
šŸ‡ÆšŸ‡µJapanFree+10.0%10%

Alternative Classifications

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

6902.20Lower: 10% vs 35%

If refractory for high-temperature furnaces

Refractory bricks/shapes of alumina in 6902, excluded from later headings.

7307.19.90Higher: 41.2% vs 35%

If stainless steel flue pipes

Steel fittings and tubes in Chapter 73 for metal construction.

6903.90.00Same rate: 35%

If siliceous refractory conduits

Other refractory ceramic goods of siliceous materials precede pipes.

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

• Certify heat resistance but below refractory thresholds to stay in 6906

• Include installation specs showing conduit use, not furnace linings

Related Products under HTS 6906.00.00.00

Vitrified Clay Drainage Pipe

A fired ceramic pipe made from vitrified clay used for underground stormwater and sewage drainage systems. It meets Chapter 69 requirements as it's shaped and fired after forming from inorganic nonmetallic materials like clay. Classified under 6906.00.00.00 as ceramic pipes for conduit purposes, excluding electrical insulators.

Ceramic Sewer Pipe Conduit

High-strength fired ceramic conduit pipe designed for municipal sewer lines to transport wastewater. Produced by shaping clay mixtures and firing at high temperatures, fitting Chapter 69 definitions. Falls under 6906.00.00.00 for ceramic pipes used in drainage systems.

Fired Clay Guttering Channel

Ceramic guttering sections made from fired clay for roof rainwater collection and directing water away from buildings. Shaped from clay and fired to create durable, nonmetallic conduits per Chapter 69 notes. Classified in 6906.00.00.00 as ceramic guttering.

Clay Roof Gutter Fitting

Fired clay end cap and outlet fittings for ceramic roof guttering systems to manage rainwater flow. Shaped clay body fired to durability standards of Chapter 69. HTS 6906.00.00.00 for ceramic guttering and fittings.

Porcelain Pipe Coupling

Translucent porcelain coupling fitting for connecting ceramic drainage pipes, fired to low water absorption specs. Meets US note (a) for porcelain as white, low-absorption body. HTS 6906.00.00.00 for ceramic pipe fittings.

Earthenware Gutter Outlet

Fired earthenware outlet spout for directing water from roof gutters to downspouts, with >3% water absorption per US notes. Clay-based body shaped and fired at high temperatures. Under 6906.00.00.00 as ceramic guttering.