Cork Dialysis Filter Wafers
Ultra-thin natural cork wafers used in medical dialysis equipment as filter spacers. They fit HTS 4503.90.20.00 as cork wafers, leveraging cork's biocompatibility and porosity. Precisely cut for high-purity applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If as parts of dialysis machines
Functional integration into medical devices classifies under Chapter 90.
If custom-perforated
Perforations for filtration make them other worked cork shapes.
If pre-sterilized for direct medical use
Sterile pharmaceutical articles fall under Chapter 30.
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Import Tips & Compliance
• Provide biocompatibility certifications (ISO 10993) and sterilization records
• Declare medical end-use but emphasize cork material to stay in Chapter 45, not 9018
• Avoid pharma packaging that could imply Chapter 30 medicaments
Related Products under HTS 4503.90.20.00
Natural Cork Gasket Washers
These are thin, circular washers made from compressed natural cork used as gaskets in machinery and plumbing to create seals. They fall under HTS 4503.90.20.00 as articles of natural cork specifically shaped as washers. The porous structure of cork provides excellent compressibility and sealing properties.
Cork Bottle Stopper Disks
Flat, disk-shaped pieces of natural cork used as stoppers or liners in wine and spirit bottles. Classified under HTS 4503.90.20.00 as cork disks, these provide airtight seals due to cork's elasticity. They are distinct from full cylindrical stoppers.
Cork Speaker Grill Wafers
Thin wafer-like sheets of natural cork cut into disks for use as protective grills on audio speakers. They are classified as cork wafers under HTS 4503.90.20.00 due to their flat, disk form and natural cork composition. Cork's acoustic properties help dampen vibrations.
Natural Cork Coaster Disks
Circular disks of natural cork used as drink coasters to absorb moisture and protect surfaces. These qualify under HTS 4503.90.20.00 as cork disks, valued for their natural water-resistant properties. They are typically 4 inches in diameter and simply cut.
Cork Jar Seal Washers
Ring-shaped washers from natural cork designed to seal glass jars for preserves and canning. Classified as cork washers under HTS 4503.90.20.00, they compress under lid pressure for airtight closure. Ideal for food preservation due to inert properties.
Natural Cork Vibration Dampener Disks
Disks of natural cork placed under machinery feet to absorb vibrations and reduce noise. Classified under HTS 4503.90.20.00 as cork disks, they excel due to cork's high damping coefficient. Commonly used in industrial equipment.