The Fleetguard Spin-on Fuel Water Separator is the perfect solution to keep your engine running smoothly. With a thread pitch of 14 threads per inch, a thread diameter of 1.00", and a length of 8.52", it is designed to fit perfectly into your engine's fuel system. The gasket OD of 4.06" and gasket inside diameter of 3.66" ensure a secure seal to prevent leaks and ensure proper filtration. It is designed to remove water and other particulates from your fuel system, ensuring that clean fuel is delivered to your engine. The flow direction is outside-in, which ensures effective filtration and extends the life of your fuel system. The internal thread seal ensures a secure seal to prevent leaks and ensure proper filtration. Overall, this a must-have for any engine owner who wants to ensure that their engine is running at peak performance. With its high-quality construction, effective filtration, and compatibility with a wide range of engines and equipment, it is the perfect solution for any engine owner who wants to keep their engine running smoothly and efficiently. FleetPride is your First Click in Heavy Duty®.