text: These Holley HP billet fuel filters are precision CNC-machined from 6061-T6 billet aluminum for maximum strength and durability. They feature a black bright dip anodized body and clear bright dip anodized ends for superior corrosion resistance and good looks. 3/8 in. NPT Inlet, Female, 3/8 NPT Outlet, Female. 40 Micron filter element included. Filter Element Material:Stainless steel mesh Filter Housing Material:Billet aluminum Filter Housing Finish:Black/Clear anodized Overall Length:3.500", Outside Diameter:1.500"