SaferCCTV (Pack of 2) Air Filter Cleaner for Stihl FS120 FS200 FS250 FS300 FS310 FS350 FS400 FS450 FS240R KM130 BT HT SP Trimmer Brush Cutter Replacement# 4134 141 0300 1. Unique service can make you rest assured to buy--(1)60-days money-back guarantee, 12 month warranty. (2) Professional sellers, and professional guidance, have more air filter to choose. (3)Provide professional use tutorials. (4) Often give away free tool products (because we clean stock). Please contact us if you need any of the above services 2. Replacement Part#: 4134 141 0300 3. This is a great new replacement air filter for Stihl FS120 FS200 FS250 FS300 FS310 FS350 FS400 FS450 Trimmer Brush Cutter 4. Will also fits the Stihl BT120C BT121 BT130 FS480 HT250 KM130 KM130R SP200 SP400 SP450 SP451 SP481 SP90 Trimmer Brush Cutter 5. Size: LxWxH 3-1/2"(88mm) x 2-3/4"(70.6mm) x 1"(25mm)