FILTERWEARS Pre-Filter F399 For K&N Air Filter RU-3580 Filter Wrap

Direct from manufacturer. Made in the USA.

Filter material: 100% monofilament polyester with water repellent finish standard on all pre-filters. Closed top, round tapered pre-filter.

Measurements: 4"(top diameter), 6"(base diameter), 5"(height)

Fits K&N Air Filter: RU-3580