Meteor 350, Classic 350 and Hunter 350 all use the same airbox, so K&N engineers the RO-3522 as a single fitment across all three. The layered cotton gauze media is oiled to trap dust and debris while flowing more freely than a stock paper element. Since the media isn't a single-use paper element, it holds up to repeated cleaning without breaking down. K&N recommends cleaning and re-oiling every 15,000 to 20,000 kilometers depending on riding conditions, and the RO-3522 is backed by K&N's No-Hassle Lifetime Limited Warranty.
Compatibility Chart
| Model | Model Years |
|---|---|
| Royal Enfield Meteor 350 | 2021 onward |
| Royal Enfield Classic 350 | 2022 onward |
| Royal Enfield Hunter 350 | 2022 onward |
Filter Specifications: Cotton gauze media, round shape, 51mm inside diameter, 97mm outside diameter, 102mm height, washable. Cross-references to BMC FM01138 and Royal Enfield OEM part 1570250B.