Inner Air Filter / Stihl 4221 140 1800Pack Size:1GB 11051, Stihl 4221 140 1800J. Thomas SL-717, Laser 43111, Napa 7-08376, NHC 203-7136, Oregon 55-243, Rotary 12570Stihl TS460 Cutquik saws, and new style TS510 and TS760 Cutquik saws with single screw coverOD: 1 7/8 ", Height: 1 11/16 ", ID: 1 11/16 "