Fuelfilter Yam Grizz/Kod 160625Fuel FilterTwin Air's latest product features a custom shaped adaptor for each model that fits securely under the gas cap, creating a leak proof seal The filter media traps dirt or debris that can enter into your fuel system when refueling This filter prevents the smallest particles or dirt from entering the tank when refuelling. The filter is simply inserted into the tank and then fixed with the tank cap.