Feature 1Fitment: The engine air filter is a replacement for Viking MB 448.1 T, replacement for STIHL RMA 448.1, please check the model and brand before ordering. 2Function: The air intake filter could prevent air from entering your engine, protecting internal components from premature wear. 3Durable Material: The air filter is made of high strength shell, and the inner part adopts paper material, has better heat resistant, anti aging, high strength. 4Fine Workmanship: Stable performance, better filtration effect, professional manufactured, exquisite workmanship with unique design, durable and high reliability. 5Easy to Install: Stringently manufactured to meet the original standard, good replacement for the old or broken one, improving the time efficiency.SpecificationItem Type:AirFilterMaterial: PaperFitment:Replacementfor Viking MB 448.1 TReplacementfor STIHL RMA 448.1 .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x AirFilter