Pre-Filter / Stihl 4221 141 0310Pack Size:1Stihl 4221 141 0310Green Meadow AF2011, J. Thomas SL-610, Laser 40395, Laser 43069, Laser 43108, Napa 7-08378, NHC 203-7114, Oregon 55-246, Oregon 55-247, Prime Line 7-08378, Rotary 12572Stihl TS460 Cutquik saws, new style TS510 and TS760 Cutquik saws with single screw covers Felt wrap, Not compatible with greater than 10% ethanol fuel