Cork Dialysis Filter Wafers
Ultra-thin natural cork wafers precision-cut for use as filter spacers in medical dialysis equipment. Their biocompatibility and porous structure make them suitable for high-purity filtration applications. Classified under tariff item 4503.90.00 as other articles of natural cork.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as part of a complete dialysis machine or medical device
Complete medical devices are classified in Chapter 90 rather than as cork articles.
If the wafers are in the form of cork stoppers or shaped cork blocks
Cork stoppers and shaped cork products have a specific tariff item in the same chapter.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the wafers are clearly declared as medical device components; if they are part of a complete dialysis machine, a different classification may apply
• Verify whether a Medical Devices Licence from Health Canada is required for the finished equipment
• Keep supplier documentation on cork origin to support the natural cork composition claim
Related Products under Tariff item 4503.90.00
Acoustic Cork Wallcovering Rolls
Rolled wallcoverings made of natural cork with embedded paper reinforcement, designed for sound absorption in studios and offices. The paper backing provides structural stability while the cork surface delivers acoustic performance. Classified under 4503.90.00 as other articles of natural cork.
Cork Bookends
Heavy, wedge-shaped bookends carved from dense natural cork to support books on shelves. They are stylish and stable, serving as functional office or library accessories.
Cork Bottle Stopper Disks
Flat, disk-shaped pieces of natural cork used as stoppers or liners in wine and spirit bottles. They provide an airtight seal due to cork's natural elasticity, ensuring product freshness.
Cork Bulletin Board
A rectangular board surfaced with thin natural cork sheets for pinning notes and photos, typically framed with wood or metal. The cork surface provides a reusable pinning area while the frame adds structural support. Classified under 4503.90.00 as other articles of natural cork.
Cork Bullet Seal Wafers
Wafers of natural cork crimped into bullet casings for ammunition sealing. They provide a wad-like expansion seal, commonly used in shotshells to keep propellant in place.
Cork Camera Lens Mount Disks
Cork disks used to cushion lens mounts in vintage cameras against shock. They restore original damping and vibration isolation in camera equipment.