AN-12 40-micron microglass element. Designed for use with gas and alcohol fuels. An inexpensive insurance policy to protect your investment, proper filtration is key to fuel system performance. Engineered filter solutions are required to achieve protection with minimum restriction. For 200 3,000 plus horsepower applications, our filter assemblies offer unmatched flow, ease of installation and maintenance, and the impeccable machining and finish youve come to expect from all Aeromotive components.