Unitron Tempest Moisture Protection Vent

Hydrophobic vent filter for Unitron Tempest hearing aids preventing cerumen and moisture ingress. Classified 9021.90.4040 as protective accessory integral to hearing disability compensation devices.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+10.0%10%
🇲🇽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.

8421.39.01Higher: 35% vs 10%

If industrial air filters

Non-medical filters classify under machinery parts, excluding Chapter 90 technical uses.

3926.90.45Higher: 38.5% vs 10%

If simple plastic filter media

Generic filtration plastics go to Chapter 39.

5911.90.00Higher: 38.8% vs 10%

If textile filter components

If textile-based, technical textiles heading applies per note 1(a).

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

Include IP57 waterproof test results; specify micron pore size for function proof; declare as kit component if sold with domes

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