the air filter is compatible with stihl MS251 aftersale service, supply a direct replacement for MS251 chainsaw.

Made of high quality material,dust-proof and durable,effectively protect carburetor and engine from dirt and debris.

Easy to clean and install,perfect for logging,garden and professiona use.

Matching with carburetor,fuel filter and spare plug for better maintenance.

We also supply fuel filter,carburetor repair kit,spark plug for your chainsaw