Twin Airs breakthrough, fused-dual-layer design (now widely copied) combines performance and protection. The fused layers of open-pore’foaming fine inner foam trap even the’smallest particles. ‘The new, rounder design and minimised shorter seams boost airflow. Twin Air filters are assembled by hand and inspected for a perfect fit – Reusing a Twin air filter 40-50 times is common. A Pre Oiled filter is submerged in Bio Liquid Power Oil and massaged to ensure all the pores are evenly coated. ‘Its then’placed’in a temperature-controlled room to allow the oil to cure. ‘You just have to install it and use it. AIRFILTER PRE-OIL FANTIC 125 XX 23-24 250 XX 23-24 125 XE 23-24 GAS GAS MX MC125 21-23 MC250 22-23 MC250F 21-23 MC350F 22-23 MC450F 21-23 GAS GAS ENDURO EC250 21-23 EC300 21-23 EC250F 21-23 EC350F 21-23 GAS GAS XC EX250 22-23 EX300 21-23 EX250F 21-23 EX350F 21-23 EX450F 21-23 KTM MX 125 SX 16-22 150 SX 16-22 250 SX 17-22 250 SX-F 16-22 350 SX-F 16-22 450 SX-F 16-22 KTM ENDURO 125 XC-W 17-19 150 XC-W 17-19 250 EXC 17-18 300 EXC 17-18 250 EXC-F 17-23 350 EXC-F 17-23 450 EXC-F 17-23 500 EXC-F 17-23 150 EXC TPI 20-23 250 EXC TPI 18-23 300 EXC TPI 18-23 HUSQVARNA MX TC 125 16-22 TC 250 17-22 FC 250 16-22 FC 350 16-22 FC 450 16-22 HUSQVARNA ENDURO TE 150 17-19 TE 250 17-18 TE 300 17-18 FE 250 17-23 FE 350 17-23 FE 450 17-23 FE 501 17-23 TE 150I 20-23 TE 250I 18-23 TE 300I 18-23 HUSQVARNA XC TX 125 17-19 TX 300 17-19 TX 300I 20-22 FX 350 17-22 FX 450 17-22