These air filters feature a patent pending design that includes two Foam Filterskins. The main filter incorporates a bonded two-layer precision foam and proper density for maximum performance and filtration. In addition, FLO Air Filters come with two Foam Filterskins to make the task of cleaning as easy as peeling away the dirty Filterskin. The Filterskin fits tight and is very thin and porous for unrestricted airflow. This product rings in at $29.95.