an air - gap device integrated within a faucet base of a faucet fixture for use with a dishwashing device is disposable on a counter surface and includes : a base forming flow channels adapted to provide a fluid - tight seal at the surface ; a fixed block wall extending from the base , the fixed block wall separating a first pair of flow channels from a second pair of flow channels and providing a fluid - tight seal for the first pair of the flow channels ; and a removable block cover selectively attachable to the fixed block wall to fluidicly couple the second pair of flow channels , the block cover further forming an air - gap channel in fluidic communication with ambient . modular design permits removal of the faucet and valve portion to access the air - gap device for maintenance , without the need to disconnect any fluid supply or waste lines .