Unsurpassed in airflow, dirt stopping and overall performance Two-stage air filters come apart for maximum airflow and ultimate cleaning Most filters feature the Ultra Seal grease groove on the sealing surface Each fits in stock air box exactly like OEM filter Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely Made in the U.S.A. This item fits the following applications: 1990-1991 Husqvarna WXE 125 1991 Husqvarna WXE 350 1991 Husqvarna WXE 260 1991 Husqvarna WXE 610 1986-1987 Husqvarna WR250 1986-1987 Husqvarna XC500 1986-1987 Husqvarna XC250 1986-1987 Husqvarna CR250 1986 Husqvarna CR500 1986 Husqvarna CR125 1986 Husqvarna XC125 1986 Husqvarna WR125