The Husqvarna 581451801 Air Filter Felt is a genuine OEM replacement designed to protect outdoor power equipment engines from dust, dirt, and debris. Its durable felt filtration helps maintain proper airflow, improve engine performance, and extend engine life. This air filter is compatible with Husqvarna 325 HE3, 325 HE4, 525 HF3S, 525 LK, 525 P4S, 525 P5S, 525 PT5S, 525 RJX, 525 RK, 525 RX, and 525 RXT hedge trimmers, pole saws, and brush cutters.
