Feature●For Sthil MS290 Air Filter, Replaces # 1127 120 1621. Please check the year of manufacturing of your chainsaw machines.●For Sthil MS290 Parts, Fitment models: 029 039 MS290 MS310 MS390 Chainsaw. Only Fit 029 039(1992-2000), MS 290(2000-2012), MS 310, 390(2000-2009).●For MS290 Sthil Chainsaw Parts, The MS290 air filter has a hole on the backside, make sure its identical with your original. NOTE: These air filters doesnt fit for STHIL 028.●[99% Effective Cleaning]: Our Sthil chainsaw air filter is crafted from high-breathable fabric material that ensures minimal airflow obstruction and achieves higher dust holding capacity.●[Advanced Engine Protection]: Using the POWTOL ms290 air filter prevents impurities from entering and wearing down the engine, ensuring smooth engine operation and extending its lifespan.●[Installation Is A Breeze]: The Sthil 029 air filter is ready for installation, simply insert into place without the need for professional tools or skills.●[Dimensions For Sthil MS 290 Air Filter]: Overall Length:4-3/4", Overall Width:2-11/16", Overall Height:1-9/16".Description