Abstract: A vacuum breaker assembly for a bidet including a vacuum breaker body defining a fluid passageway therethrough and a vacuum breaker opening communicating with the fluid passageway. A piston check valve is movably received within the fluid passageway and moves between positions wherein the vacuum breaker opening is open and closed. A duckbill check valve is fixedly recived within the fluid passageway of the vacuum breaker body upstream of the piston check valve, thereby providing additional protection against backflow of contaminated water through the device. Flexible conduits are connected to the vacuum breaker body inlet and outlet and communicate with a suitable potable water source.