Engineered to serve the motocross and ATV industryMade for great performance in the off-road conditionsExpected to provide maximum durability and protectionWill meet and surpass all your filtering needs Fuel Tank Filter by Twin Air®. You'd be amazed at the dirt and debris that can work its way into your gas can – and from there, your fuel tank. Twin Air's monofilament screen pocket inserts in your tank to catch particles as small as 40 microns (.00165") while allowing the gas to flow freely. The flange is custom-sized for each modern 4-stroke model to ensure a leak-proof seal. Just remove the filter periodically, turn it inside-out, and clean out the debris that could have been in your engine.