My wife has a farm in the CVNP south of Cleveland. We have a Ford 3910 Diesel Tractor. I am reaching out in this forum to obtain more knowledge of maintenance. I am servicing the fuel system. The fuel line goes into a clear container with a visible filter element and beneath the glass container is a bleeder. Obviously, this is a water separator unit. My question is....what is the filter number for this unit. I already have the second filter which has a metal casing around the filter element.