This is the 6 AN Bailey Fuel Filter Shutoff and comes standard with a 140 Micron stainless steel filter. The aluminum housing and ends offers a ball valve shutoff. With the shutoff inline before the filter, it allows for quick and easy changing of the filter. Check out other part numbers, BC-31012 for 10 AN Filter Shutoffs, and BC-31024 for 8 AN Filter Shutoffs.