## Twin Air Air Filter Insert, Pre-Filter, 154116DC (HFF5019) This high-quality Twin Air air filter insert, pre-filter, model 154116DC (HFF5019), provides optimal protection and performance for your motorcycle. Designed with precision and attention to detail, this dual-layer foam filter offers unparalleled filtration, protecting your engine from harmful contaminants. ### Superior Filtration and Performance Twin Air is renowned for producing top-quality air filters. The 154116DC (HFF5019) is no exception. Its dual-layer foam construction with evenly distributed cells ensures excellent filtration, minimizing the ingress of dust and other contaminants into the engine. Minimized seams, thanks to a revolutionary micro-gluing process, further seal the filter and increase its effectiveness. ### Durability and Reusability The Twin Air 154116DC (HFF5019) air filter insert is reusable. It can be easily washed and reused, making it an economical and environmentally friendly solution. Reusing the filter (up to 30 times) is standard for Twin Air products, demonstrating their durability and quality. ### Perfect Fit Twin Air does not produce universal filters. Each filter is individually designed for a specific motorcycle model. The 154116DC (HFF5019) has been precisely tailored to fit a wide range of motorcycles (Twin Air has molds for over 1500 different motorcycle models, dating back to 1965). Each filter is hand-assembled and inspected for a perfect fit, guaranteeing a tight seal and optimal engine performance. ### Additional Benefits The filter is packaged in a resealable and reusable bag. Some versions also feature an additional flame-retardant foam layer, eliminating the need for a restrictive, stock backfire screen. By choosing the Twin Air 154116DC (HFF5019) air filter insert, you are investing in the long-term protection and performance of your motorcycle.