Dip Tube for Cold Water Storage Heaters

Plastic or copper dip tube directing incoming cold water to tank bottom in storage water heaters. Under HTS 8419.90.10.00 as it promotes thermal layering for efficiency in non-electric units. Prevents mixing with hot water above.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

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

3917.40.00Higher: 40.3% vs 35%

If bulk plastic tubing

Generic PVC/PE tubes classify under plastics, lacking heater shape.

7419Lower: 10% vs 35%

If copper dip tubes sold separately

Articles of copper without assembly features go to Chapter 74.

8421.99.01Same rate: 35%

If in commercial water softening systems

Dip tubes for filters/conditioners classify under separating equipment.

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 material (NSF-61 approved plastic) for potable water compliance

Supply tank cutaway diagrams illustrating dip tube positioning

Avoid pipe classification by documenting pre-formed bend angles

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