Twin Air Standard Air Filter — GasGas EC 250F (2021-2023), GasGas EC 350F

Twin Air's Standard Air Filter is the dual-stage foam filter that's been the benchmark in dirt-bike air filtration for decades. Two fused layers of open-pore foam — coarse outer, fine inner — trap airborne dust, grime, and sand while keeping airflow high. Assembled by hand and inspected for fit, with model-specific molds for 1500+ motorcycles dating back to 1965.

• Dual-stage open-cell foam — outer catches grit, inner traps fine particles
• Hand-assembled and inspected, with a greaseless sealing ring
• Washable and reusable — 30+ cleaning cycles is typical
• Model-specific fit — no universal sizes
• Drops into the OEM airbox

Fitment: bike-specific air-box fit. Drops into the OEM air-box on:

• GasGas EC 250F (2021-2023)
• GasGas EC 350F (2021-2023)
• GasGas EX 250F (2021-2023)
• GasGas EX 350F (2021-2023)
• GasGas MC 250F (2021-2023)
• GasGas MC 450F (2021-2023)
• Husqvarna FC 250 (2019-2022)
• Husqvarna FC 350 (2019-2022)
• Husqvarna FC 450 (2019-2022)
• Husqvarna FE 250 (2019-2022)
• Husqvarna FE 350 (2019-2022)
• Husqvarna FE 450 (2019-2022)
• Husqvarna FS 450 (2019-2023)
• Husqvarna FX 350 (2019-2022)
• Husqvarna FX 450 (2019-2022)
• KTM 250 EXC-F (2019-2023)
• KTM 250 SX-F (2019-2022)
• KTM 250 XC-F (2019-2022)
• KTM 250 XCF-W (2019-2022)
• KTM 350 EXC-F (2019-2023)
• KTM 350 SX-F (2019-2022)
• KTM 350 XC-F (2019-2022)
• KTM 350 XCF-W (2019-2022)
• KTM 450 EXC (2019-2023)
• KTM 450 SX-F (2019-2022)
• KTM 450 XC-F (2019-2022)
• KTM 450 XC-W (2019-2022)