HIPA (Pack of 2) Mesh Stytle Air Cleaner for STIHL 024 MS240 MS260 Chainsaw # 1121 120 1617 (with detailed sizes) Repalcement Manufacturer part number: 1121 120 1617 Fitment models: STIHL 024 MS240 MS260 chainsaw Qty: 2pcs Detailed size is noted in the picture, please compare it carefully with your old filter DO NOT FIT STIHL 026 CHAINSAW