Maxima Racing Oils AFR-3404-00 ProFilter Ready to Use Dual Stage Foam Air Filter, Single Kawasaki ATV KFX/KVF 400 03-06 Bonded dual-stage open cell foam matrix with 6 millimeter outer foam and 10 millimeter inner foam layer Washable and re-useable, with high strength glued seams that won't fall apart Pre-oiled with Maxima FFT filter oil Complete with disposable gloves and packaged in a resealable bag