Twin Air 154115DC Dust Cover Fits: KTM 85 SX/XC 2013, 125 EXC 12-13, 125/144/150 SX 11-13, 200 EXC/XC-W 12-13, 250 EXC/EXC-F/XC-F/XCF-W 12-13, 250 SX/SXS-F/XC/XC-W 11-13, 300 XC/XC-W 2T 11-13, 350 SX/SXS-F/EXC-F/XC-F/XCF-W 11-13, 450 SX-F/SXS-F/EXC/SMR/XC-W 11-12 + more Fit this over your Twin Air filter when your riding in severe conditions such as heavy dust and sand This coarse foam pre-filter will act as an additional layer of protection Extends the service time between filter cleanings Designed for use with Twin Air air filters