FILTERWEARS Pre-Filter K337K For K&N Air Filter RX-3820-1

Filter material: 100% monofilament polyester with water repellent finish standard on all pre-filters.
Closed top, round taper pre-filter.
Measurements: 4.0"T, 4.5"B, 6.57"H

Compare to K&N RX-3820PK
Fits K&N filters: RX-3800, RX-3820-1, RD-6000, E-1989