Fitment: This engine air filter is a replacement for Viking MB 448.1 T and STIHL RMA 448.1. Please verify your model and brand before purchasing. Function: The air intake filter helps prevent dust and debris from entering the engine, protecting internal components from premature wear. Durable Material: Constructed with a high-strength housing and premium paper filtration media, designed for heat resistance, anti-aging properties, and long-lasting durability. Fine Workmanship: Engineered for stable performance and efficient filtration, featuring professional manufacturing, precise construction, and a reliable design. Easy to Install: Built to meet original equipment specifications, this air filter is a direct replacement for old or damaged units, ensuring quick and hassle-free installation. Specification Item Type: Air Filter Material: Paper Fitment: Replacement for Viking MB 448.1 T, Replacement for STIHL RMA 448.1 Package List: 1 x Air Filter