Abstract: A funnel cap device for a fluid container includes a funnel-shaped member having a passage therethrough extending between a wide end and a narrow end thereof, and a cap member attached to the funnel-shaped member for selectively opening and closing the narrow end of the passage. A hub portion extends from the narrow end of the funnel-shaped member, the cap member being slidable on the hub portion between open and closed positions. The cap member and hub portion include a cooperating aperture and seal tab which mutually engage in the closed position to prevent fluid flow. The funnel cap device is attachable to a fluid container having a spout on one end. The funnel-shaped member includes an intermediate portion having a thread pattern on an inner surface for engaging similar threads on the spout in an upright orientation where the funnel-shaped member engages the neck of the container.