Parts of machinery and apparatus for filtering or purifying water
Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof: > Parts: > Other > Parts of machinery and apparatus for filtering or purifying water
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8421.99.01.40
UV Water Purifier Quartz Sleeve
A quartz glass tube that protects UV lamps while allowing light transmission for water disinfection in purification systems. Classified in HTS 8421.99.0140 as an essential part of water purifying apparatus.
Whole House Filter Manifold
Multi-port PVC manifold distributing pressurized water through parallel filter housings in whole-house systems. HTS 8421.99.0140 for water filtration machinery.
Pool Filter Multiport Valve
7-position valve controlling filter, backwash, rinse functions in sand filter pools. Dedicated water purification component, HTS 8421.99.0140.
Inline Water Filter Head Assembly
Brass head assembly with 1/4" quick connects for under-sink inline carbon filters. HTS 8421.99.0140 as water purification machinery part.
Deionization Cartridge Mounting Rack
Stainless wall-mount rack holding mixed-bed DI cartridges for lab ultrapure water systems. Specific to water purification, HTS 8421.99.0140.
Reverse Osmosis Membrane Housing
A pressure vessel designed to hold reverse osmosis membranes in water purification systems. It is classified under HTS 8421.99.0140 as a part specifically for machinery used in filtering or purifying water through membrane separation processes.
Water Filter Cartridge Holder Assembly
A modular assembly that securely holds replaceable filter cartridges in residential or commercial water purification units. Falls under HTS 8421.99.0140 due to its dedicated role in water filtering machinery.
Backwash Valve for Water Filters
Multi-port valve enabling cleaning cycles in sand or multimedia water filtration systems. HTS 8421.99.0140 applies as a specialized part for water purifying machinery operation.
Ion Exchange Resin Tank Adapter
Specialized fitting connecting ion exchange resin tanks to water softening/purification manifolds. Classified under HTS 8421.99.0140 for its role in water purification processes.
Sediment Filter Bowl with Drain
Transparent polycarbonate bowl housing pleated sediment filters in whole-house water systems, featuring integrated drain valves. HTS 8421.99.0140 as dedicated water filtration component.
Water Softener Control Valve Top Mount
Electronic control valve managing regeneration cycles in top-mounted water softener tanks. Specific to water purification via ion exchange, thus HTS 8421.99.0140.
RO System Pump Mounting Bracket
Stainless steel bracket securing booster pumps in under-sink reverse osmosis systems. HTS 8421.99.0140 as structural part integral to water purification machinery.
Carbon Block Filter End Caps
Precision-machined plastic caps sealing carbon block cartridges in water filtration housings. Essential retention components for water purification, HTS 8421.99.0140.
Distillation Unit Condenser Coil
Copper tubing coil condensing steam into purified water in countertop distillation systems. Specific to water purification apparatus, thus HTS 8421.99.0140.
Pressure Tank Bladder Replacement Kit
Butyl rubber bladder kit for hydropneumatic pressure tanks in well water conditioning systems. Essential for water storage/purification integration, HTS 8421.99.0140.