Q3HSN Code 8405
Producer gas or water gas generators, with or without their
Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers
GST rate
18%
Codes under 8405
| Code | Description | GST rate |
|---|---|---|
| 8405 10 | Producer gas or water gas generators, with or without their purifiers, acetylene gas generators and similar water process gas generators, with or without their purifiers: | 18% |
| 8405 10 10 | Producer gas or water gas generators | 18% |
| 8405 10 20 | Acetylene gas generators | 18% |
| 8405 90 | Parts | 18% |
← Chapter 84: Machinery, engines and mechanical appliances
Related HSN codes
8406Steam turbines and other vapour turbines8404Auxiliary plant for use with boilers of heading 84028407Spark-ignition reciprocating or rotary internal combustion8403Central heating boilers other than thoseof heading 84028408Compression-ignition internal combustion piston engines8402Steam or other vapour generating boilers
Frequently Asked Questions
What is the HSN code for producer gas or water gas generators, with or without their?
The HSN code for producer gas or water gas generators, with or without their is 8405, under Chapter 84 (Machinery, engines and mechanical appliances).
What is the GST rate on producer gas or water gas generators, with or without their?
Producer gas or water gas generators, with or without their is taxed at 18% GST under HSN code 8405.
How many digits of the HSN code go on a GST invoice?
It depends on your turnover in the previous financial year: businesses above ₹5 crore generally show 6 digits (8 for certain specified goods), and smaller businesses show 4 digits on B2B invoices. Check the current e-invoicing/HSN notification for the exact threshold that applies to you.
Rates as per Notification No. 9/2025-Central Tax (Rate), as amended, as of 7 October 2026. For guidance only — verify with your tax advisor.