For use on motorcycles, ATVs, go-carts, snowmobiles, air compressors, tractors and anything with a carburetor Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse Use outside pre-filter dry for dusty conditions or oiled for extremely wet conditions Two-stage air filters come apart for maximum airflow and ultimate cleaning Unsurpassed in airflow, dirt stopping and overall performance Black inner foam, red outer foam and a urethane flange Clamp directly to carburetor Made in the USA. UNI TWO STAGE POD FILTER