HS 85407 – Microwave tubes (for example, magnetrons, klystrons, travelling wave tubes, carcinotrons), excluding grid-controlled tubes:

Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026

Microwave tubes (for example, magnetrons, klystrons, travelling wave tubes, carcinotrons), excluding grid-controlled tubes:

• 8540-71-00-00 – Magnetrons
• 8540-79-00-00 – Other

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Frequently asked questions

Does HS 85407 have one duty rate?

Microwave tubes (for example, magnetrons, klystrons, travelling wave tubes, carcinotrons), excluding grid-controlled tubes: is an intermediate classification, not a complete eight-digit tariff item. 2 child tariff lines are available. Select the specific child item before determining the duty rate; CBSA classification is authoritative.

Can CUSMA or other preferences apply under HS 85407?

Preference depends on the exact eight-digit tariff item, qualifying country of origin and origin proof or certification. Consult the linked child tariff lines for T2026-2 MFN and preferential rates. Surtaxes and GST/HST/PST must also be checked for the specific item and origin.