Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof:
Part of: 84 — Nuclear reactors, boilers, machinery and mechanical appliances; parts
N359872 · 2026-04-01 — The tariff classification of a disposable CLIC absorber from Germany
Descriptive literature was provided for our review. The items under consideration are described as disposable CLIC absorbers, which are devices designed for use with Dräger anesthesia workstations and compatible respiratory therapy equipment. The absorbers are sealed plastic cartridges containing a carbon dioxide absorbent material (typically soda lime or equivalent chemical compound). During anesthesia or respiratory therapy, the patient’s exhaled gases pass through the absorber. The absorbent material chemically removes carbon dioxide from the gas mixture, allowing the remaining gases to be…
H345780 · 2026-02-03 — Application for Further Review of Protest No. 2704-23-168738; Classification of Sand and Cartridge Filter Systems from China
The following is our decision on the Application for Further Review (AFR) of Protest No. 2704-23-168738, which was filed on December 5, 2023, on behalf of Aquapro Systems, LLC (protestant). The Protest and AFR concern the applicability of U.S. Note 20(ttt)(i)(23) to Chapter 99 of the Harmonized Tariff Schedule of the United States (HTSUS) regarding certain sand and cartridge filter systems from China. In reaching the determination below, U.S. Customs and Border Protection (CBP) has considered information submitted with the Protest and AFR, including supplemental information provided on May…
N355499 · 2025-11-20 — The tariff classification of lithium-ion battery electrolyte production equipment from China
, you requested a tariff classification ruling. The product in question is a modular lithium-ion battery electrolyte production plant. As imported, the plant equipment will consist of an unloading unit, hot water unit, tank farm unit, purification and filtration unit, blending unit, water cooling unit, central control unit, pipe rack, and other components required to interconnect the various plant modules. You state that, due to its large size, the plant equipment will be imported unassembled in multiple containers, but in a single entry. Your submission describes the plant’s electrolyte…
N355172 · 2025-11-13 — The tariff classification of filters from Italy
Descriptive literature was provided for our review. The first item under consideration is described as a CSD filtering cartridge (model CSD40000A10A), which is a filter designed to operate under medium pressure levels of up to 50 bar. The filters deliver optimal performance when used in hydrostatic drives, earthmoving machines, compressors, and converters. The filters are easily replaced through a quick, clean, and simple procedure. This characteristic is said to be particularly important in demanding work environments where conditions are highly deteriorated. CSD cartridges can handle flow…
N354669 · 2025-10-29 — The tariff classification of an aquarium gravel cleaner from China
Descriptive literature was provided for our review. The item under consideration is described as the Fluval ProVac aquarium gravel cleaner, which is a motor-driven, electric gravel vacuum designed for aquarium cleaning and maintenance. It uses consistent, powered suction to remove dirt, debris, and fish waste from the substrate. The ProVac is a plug-in, 12V electric unit that provides continuous power without a loss of suction. The device can perform two main functions. First, it pulls in debris and cycles the water through an internal filter, returning filtered water to the tank. This allows…
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