Direct from manufacturer. Made in the USA.
Filter material: 100% monofilament polyester with water repellent finish standard on all pre-filters.
Black, closed top, round taper pre-filter.
Measurements: 3.0"T, 4.0"B, 5.0"H
Compare to K&N SN-2590PK
Fits K&N filters: SN-2590, RC-2600
Fits aFe Air Filter: 18-03001