In-Line Fuel Filter, accepts 3/8 NPT Fittings, 5-1/8 overall length Removes dirt and debris from fuel systems The Aluminium housing is black anodized with o-ringed removable end caps Filter Element itself is constructed out of a Stainless Steel fine screen that filters down to 40 Microns and is washable for re-use NOTE: Not recommended for high-pressure fuel injection systems