1、It can effectively filter impurities and dust to ensure the normal operation of the engine. 2、The installation and replacement method is simple, which can directly replace the old or damaged parts and improve the work efficiency. 3、This kit is perfect for Homelite ST525 ST725 SX135 ST385BC ST285BC ST275 ST155. 4、Professional manufacturing, production according to the original specifications, in line with strict quality standards. 5、Made of high quality sponge, durable, corrosion-resistant, long service life. Condition: 100% Brand New Item Type: Chainsaw Air Filter Kit Material: Filter Cotton, Sponge Weight: Approx. 62g / 2.2oz Application: Fit for Homelite ST525 ST725 SX135 ST385BC ST285BC ST275 ST155 Fit for Homelite K100 K200 K300 UT-20742 UT-20764 2 x Air Filter 1 x Spark Plug 2 x Primer Bulb 2 x Gasket 1 x Fuel Filter 1 x Fuel Line