The FS490 air filter is a flat paper element for trimmers and brush cutters. The pleated yellowish white paper sits inside an orange rubber sealing frame, with the four corners seating on the housing to keep the seal tight. The paper holds dust and grass shreds before they reach the cylinder. Replace the element when the media turns dark, the pleats flatten, the edges tear, or the frame cracks or warps. Do not wash the paper in water or soak it in fuel; clean it with a dry cloth or a gentle blast of compressed air. When fitting, seat the frame evenly on the housing instead of forcing it in crooked. Similar cutters such as the FS450, FS510, FS560 and FS460 use the same style of filter, but they are not all interchangeable, so compare the old part's shape before ordering, or send a photo to confirm.

 FAQ 

Q1: Can I wash the FS490 air filter in water or fuel?

No. This is a paper element. Wipe it with a dry cloth or blow it off gently with compressed air, and replace it when the media is dark or torn.

Q2: Which machines does this air filter fit?

The FS490 uses this filter. Similar cutters such as the FS450, FS510, FS560 and FS460 use the same style, but they are not all interchangeable, so compare the old part or send a photo before ordering.

Q3: What if the orange frame is warped or cracked?

Replace the whole element. A damaged frame will not seal against the housing, and dust gets in even with a fresh paper filter.