What is HSN Code 842121?
HSN code 842121 is the Harmonized System of Nomenclature classification for For Filtering Or Purifying Water : under India's Goods and Services Tax (GST). It is a 6-digit code sitting at the sub-heading (6-digit) level of the HSN hierarchy.
This code belongs to Chapter 84 — Nuclear Reactors, Boilers, Machinery And Mechanical Appliances; Parts…, which is part of Section XVI: Machinery & Electrical Equipment. Every GST-registered business supplying for filtering or purifying water : must quote HSN 842121 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.