For filtering or purifying water
Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. > Filtering or purifying machinery and apparatus for liquids: > For filtering or purifying water > For filtering or purifying water
Duty Rate (from China)
Products classified under Tariff item 8421.21.00
Activated Carbon Water Filter Cartridge System
A multi-stage filtration unit using activated carbon cartridges to remove chlorine, odors, and organic compounds from municipal water supplies. It is dedicated to water purification and falls under tariff item 8421.21.00 for filtering or purifying water.
Berkey Gravity Water Filtration System
A countertop gravity-fed stainless steel water purifier with Black Berkey elements that remove pathogens, heavy metals, and chemicals from any water source. It is a complete purification system designed for water treatment, qualifying under tariff item 8421.21.00.
Ceramic Doulton Water Filter Candles System
A gravity-fed ceramic filter system with silver-impregnated Doulton candles that remove bacteria, cysts, and sediments from water without electricity. It is a water purification apparatus specifically designed for filtering water, falling under tariff item 8421.21.00.
Commercial Reverse Osmosis Membrane Skid
A pre-assembled reverse osmosis skid with high-pressure pumps, membranes, and controls for producing purified water in bottling plants. It is machinery specifically designed for water purification, qualifying under tariff item 8421.21.00.
Commercial Ultraviolet Water Purifier
An industrial ultraviolet sterilizer that uses ultraviolet light to disinfect water by inactivating bacteria, viruses, and other pathogens without chemicals. It is specifically designed for water purification, falling under tariff item 8421.21.00.
Distillation Water Purification Unit
A countertop water distiller that boils and condenses water to produce mineral-free distilled water for drinking or lab use. It is a thermal water purification process, qualifying under tariff item 8421.21.00 for filtering or purifying water.
Electrodeionization Water Purification Module
An electrodeionization module using electrical current and ion-exchange membranes to continuously deionize water for high-purity applications like pharmaceuticals. It is advanced water purification machinery, falling under tariff item 8421.21.00.
Hydrogen-Rich Water Generator
An electrolysis-based countertop device producing hydrogen-infused alkaline water claimed for antioxidant benefits. It is marketed for water purification and pH adjustment, qualifying under tariff item 8421.21.00 as water purification apparatus.
Industrial Microfiltration Water Purifier
A membrane-based microfiltration system that removes suspended solids, microorganisms, and particulates from process water in manufacturing facilities. It is water-specific purification machinery, falling under tariff item 8421.21.00.
Ion Exchange Water Softener System
A residential water softener using cation exchange resin to remove hardness minerals (calcium, magnesium) from water, preventing scale buildup. It is a water purifying apparatus, qualifying under tariff item 8421.21.00.
Nanofiltration Water Treatment System
A nanofiltration membrane system removing divalent ions, organics, and color while retaining beneficial minerals from water. It is specialized water purification machinery, falling under tariff item 8421.21.00.
Pool and Spa Ozone Water Purifier
An ozone injection system that generates O3 gas to oxidize contaminants in swimming pool water, reducing chlorine needs. It is a water purification apparatus for recreational use, qualifying under tariff item 8421.21.00.
Portable Backpacking Water Purifier Straw
A personal hollow fiber membrane straw purifier that filters up to 1,000 liters of water from streams, removing 99.9999% bacteria and protozoa. It is a portable water purification device, falling under tariff item 8421.21.00.
Reverse Osmosis Water Purification System
A residential reverse osmosis system that uses a semi-permeable membrane to filter and purify water by removing dissolved solids, bacteria, and contaminants. It is machinery specifically designed for water purification, qualifying under tariff item 8421.21.00.
Whole House Sediment Water Filter
A large-capacity spin-down sediment filter for residential whole-house systems that removes sand, rust, and debris from well or municipal water. It is a water purifying apparatus, falling under tariff item 8421.21.00.