Arlen Ness Screaming Eagle Stage 1 Replacement Air Filter For Harley Touring The Arlen Ness High-Flow air filter element is made using the finest materials available. Each filter is pre-oiled, and feature four layers of surgical-grade cotton to promote airflow and filter air effectively. It is hand-poured one at a time in a urethane body, unlike many other filters that are spun, which can leave a residue on the filtration media. The Stainless Filter differs from the Standard Filter in two areas: The mesh supporting the gauze is made of a rust-resistant stainless steel as opposed to standard carbon steel, and the cotton filtration gauze is in its natural white color, rather then the shade of red of the Standard Filter. Features: Replaces OEM 29242-08 Sold each Note: Hardware not included.