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Rockwool Comfortbatt Fire-Resistant Insulation

Stone wool batts (classified as glass wool equivalent) with R-23 rating for stone wool fire-rated walls, offering superior sound absorption. HTS 7019.80.10 applies as it meets fused silica/mineral wool insulation criteria in Chapter 70.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China4.9%+37.5%42.4%
🇲🇽Mexico4.9%+10.0%14.9%
🇨🇦Canada4.9%+10.0%14.9%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

More Specific Codes

This product may fall under a more specific subheading:

Alternative Classifications

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

7019.80Same rate: 42.4%

If other articles of glass wool not specifically insulation

Non-insulation uses like filters or packing classify separately within the same heading.

6902.10.10.00Lower: 37.5% vs 42.4%

If containing refractory materials for kiln linings

Refractory bricks/blocks of mineral wools shift to Chapter 69 ceramics.

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

• Submit certificates verifying non-combustible properties and fiber analysis for fire-rated claims

• Package in consumer-ready retail units to qualify as insulation products, not bulk fibers

• Watch for reclassification if fibers exceed 6mm average diameter threshold for wool definition