Uni Filter Universal Air Filters is where it all started over 40 years ago. Make a trick filter that clamps directly to the carburetor. For use on motorcycles; go-karts; tractors; air compressors; snowmobiles; anything with a carburetor can benefit from a Uni Filter Universal Pod Air Filter. Universal fitment; 6'' long pod type air filter with a straight urethane flange Durable urethane mounting base clamps directly to carburetor for longer life and better fit Two stage design for maximum airflow - red coarse outer foam and black fine inner foam Outer foam pre-filter can be used dry for dusty conditions or oiled for extremely wet conditions Completely washable motorcycle/ATV air filter For use on motorcycles; ATV/UTVs; go-carts; snowmobiles; air compressors; tractors and anything with a carburetor ID (Inner Diameter) opening will reduce to 3/8'' smaller than listed size Made in the USA Note: Product may not be legal for sale or use in California or other localities due to state and/or federal anti-tampering laws. Refer to chaparral-racing.com/terms before purchasing.