Available in four base sizes: 9mm, 15mm, 20mm, and 25mm. Due to the flexible rubber design, these filters can adapt to a range of sizes between 9mm and 25mm, including 10mm, 11mm, 12mm, 13mm, 14mm, 16mm, 17mm, 18mm, 19mm, 21mm, 22mm, 23mm, and 24mm applications.
ADD W1 crankcase vent breather filters improve airflow and capture airborne particles better than stock filters. Designed for performance engines, they enhance crankcase ventilation and help reduce oil contamination.
These washable and reusable breather filters provide a durable, long-term solution for performance and maintenance.