45mm Friction Fit Gas Cap for Craftsman Mower

This little cap will snap fit on to some mowers like my crafstman push mower with a 45mm outside diameter nozzle. The mower actually has a sort of interlocking mechanism inside the tube for the original cap, but this is much simpler. Simply friction fits on.

May not properly vent air into the tank but seems to work fine. Probably simply leaks enough air.