HS Code for Water purifier

Water purifiers are classified under HS code 842121, which specifically covers machinery and apparatus for filtering or purifying water. This classification is based on the mechanical or physical process the device uses to remove impurities from water. Heading 8421 is a broad category for centrifuges and filtering/purifying machinery for liquids or gases, and the six-digit subheading 842121 is the specific provision for water-related applications. This includes a wide range of technologies, from simple carbon block filters to complex multi-stage reverse osmosis (RO) systems. The classification logic is driven by the primary function of the device: the separation of solid, semi-solid, or dissolved particles from a liquid medium. Whether the device is intended for domestic use under a kitchen sink or for industrial use in a factory, the HS code remains 842121. It is important to note that the device must be a complete apparatus; individual replacement filter cartridges are often classified separately under 842199 as parts, depending on their construction and the specific customs jurisdiction's rules.

Products Included

• Reverse osmosis (RO) water purification systems
• Countertop activated carbon water filters
• Ultraviolet (UV) water sterilizers
• Ultrafiltration (UF) membrane systems
• Gravity-fed ceramic water purifiers
• Ion-exchange water purification units

Common Misclassification

Water purifiers are sometimes confused with HS code 8516, which covers electric water heaters and electro-thermic domestic appliances. This happens when a purifier also has a heating or cooling function. However, per GRI 3(b), the essential character of the machine is water purification, so 842121 is preferred. Another common error is using 382499 for chemical water treatment products; 842121 is strictly for the mechanical or electrical machinery, not the chemical agents themselves.

FAQ

What is the HS code for water purifier?

The standard HS code for water purifiers is 842121, which covers all machinery and apparatus designed for filtering or purifying water.

Does this code include replacement filter cartridges?

Generally, no. Complete purification units are 842121, while replacement cartridges or individual filtering elements are typically classified as parts under HS code 842199.