My cub is a 1949 and starting leaking fuel around the glass bowl. I ordered a new screen and cork gasket and when pulled the bowl to replace the screen I found a screen different than what everyone sells as a replacement. I've attached a photo of the underside of the "cup" the bowl sits under and both screens. The screen that came out has the plastic reinforcement and a large center hole. The replacement screens hole is too small to fit over the center section of the "cup". Why am I being sent a screen that doesn't fit? Is my sediment bowl assembly the wrong one?